You are an expert in program synthesis. You are tasked with solving a Syntax-Guided Synthesis (SyGuS) problem. Your goal is to output a function that should produce outputs that satisfy a series of constraints when given specific inputs.

Question:
(set-logic SLIA)

(synth-fun f ((name String)) String)

(declare-var name String)
(constraint (= (f "938-242-504") "242"))
(constraint (= (f "308-916-545") "916"))
(constraint (= (f "623-599-749") "599"))
(constraint (= (f "981-424-843") "424"))
(constraint (= (f "118-980-214") "980"))
(constraint (= (f "244-655-094") "655"))
(constraint (= (f "830-941-991") "941"))
(constraint (= (f "911-186-562") "186"))
(constraint (= (f "002-500-200") "500"))
(constraint (= (f "113-860-034") "860"))
(constraint (= (f "457-622-959") "622"))
(constraint (= (f "986-722-311") "722"))
(constraint (= (f "110-170-771") "170"))
(constraint (= (f "469-610-118") "610"))
(constraint (= (f "817-925-247") "925"))
(constraint (= (f "256-899-439") "899"))
(constraint (= (f "886-911-726") "911"))
(constraint (= (f "562-950-358") "950"))
(constraint (= (f "693-049-588") "049"))
(constraint (= (f "840-503-234") "503"))
(constraint (= (f "698-815-340") "815"))
(constraint (= (f "498-808-434") "808"))
(constraint (= (f "329-545-000") "545"))
(constraint (= (f "380-281-597") "281"))
(constraint (= (f "332-395-493") "395"))
(constraint (= (f "251-903-028") "903"))
(constraint (= (f "176-090-894") "090"))
(constraint (= (f "336-611-100") "611"))
(constraint (= (f "416-390-647") "390"))
(constraint (= (f "019-430-596") "430"))
(constraint (= (f "960-659-771") "659"))
(constraint (= (f "475-505-007") "505"))
(constraint (= (f "424-069-886") "069"))
(constraint (= (f "941-102-117") "102"))
(constraint (= (f "331-728-008") "728"))
(constraint (= (f "487-726-198") "726"))
(constraint (= (f "612-419-942") "419"))
(constraint (= (f "594-741-346") "741"))
(constraint (= (f "320-984-742") "984"))
(constraint (= (f "060-919-361") "919"))
(constraint (= (f "275-536-998") "536"))
(constraint (= (f "548-835-065") "835"))
(constraint (= (f "197-485-507") "485"))
(constraint (= (f "455-776-949") "776"))
(constraint (= (f "085-421-340") "421"))
(constraint (= (f "785-713-099") "713"))
(constraint (= (f "426-712-861") "712"))
(constraint (= (f "386-994-906") "994"))
(constraint (= (f "918-304-840") "304"))
(constraint (= (f "247-153-598") "153"))
(constraint (= (f "075-497-069") "497"))
(constraint (= (f "140-726-583") "726"))
(constraint (= (f "049-413-248") "413"))
(constraint (= (f "977-386-462") "386"))
(constraint (= (f "058-272-455") "272"))
(constraint (= (f "428-629-927") "629"))
(constraint (= (f "449-122-191") "122"))
(constraint (= (f "568-759-670") "759"))
(constraint (= (f "312-846-053") "846"))
(constraint (= (f "943-037-297") "037"))
(constraint (= (f "014-270-177") "270"))
(constraint (= (f "658-877-878") "877"))
(constraint (= (f "888-594-038") "594"))
(constraint (= (f "232-253-254") "253"))
(constraint (= (f "308-722-292") "722"))
(constraint (= (f "342-145-742") "145"))
(constraint (= (f "568-181-515") "181"))
(constraint (= (f "300-140-756") "140"))
(constraint (= (f "099-684-216") "684"))
(constraint (= (f "575-296-621") "296"))
(constraint (= (f "994-443-794") "443"))
(constraint (= (f "400-334-692") "334"))
(constraint (= (f "684-711-883") "711"))
(constraint (= (f "539-636-358") "636"))
(constraint (= (f "009-878-919") "878"))
(constraint (= (f "919-545-701") "545"))
(constraint (= (f "546-399-239") "399"))
(constraint (= (f "993-608-757") "608"))
(constraint (= (f "107-652-845") "652"))
(constraint (= (f "206-805-793") "805"))
(constraint (= (f "198-857-684") "857"))
(constraint (= (f "912-827-430") "827"))
(constraint (= (f "560-951-766") "951"))
(constraint (= (f "142-178-290") "178"))
(constraint (= (f "732-196-946") "196"))
(constraint (= (f "963-875-745") "875"))
(constraint (= (f "881-865-867") "865"))
(constraint (= (f "234-686-715") "686"))
(constraint (= (f "720-330-583") "330"))
(constraint (= (f "593-065-126") "065"))
(constraint (= (f "671-778-064") "778"))
(constraint (= (f "252-029-036") "029"))
(constraint (= (f "700-322-036") "322"))
(constraint (= (f "882-587-473") "587"))
(constraint (= (f "964-134-953") "134"))
(constraint (= (f "038-300-876") "300"))
(constraint (= (f "158-894-947") "894"))
(constraint (= (f "757-454-374") "454"))
(constraint (= (f "872-513-190") "513"))
(constraint (= (f "566-086-726") "086"))

(check-synth)
Solution:
(define-fun f ((name String)) String (str.substr name 4 3))

Question:
(set-logic SLIA)

(synth-fun f ((name String)) String)

(declare-var name String)
(constraint (= (f "938-242-504") "938"))
(constraint (= (f "938-242-504") "938"))
(constraint (= (f "938-242-504") "938"))
(constraint (= (f "308-916-545") "308"))
(constraint (= (f "308-916-545") "308"))
(constraint (= (f "308-916-545") "308"))
(constraint (= (f "623-599-749") "623"))
(constraint (= (f "623-599-749") "623"))
(constraint (= (f "623-599-749") "623"))
(constraint (= (f "981-424-843") "981"))
(constraint (= (f "981-424-843") "981"))
(constraint (= (f "981-424-843") "981"))
(constraint (= (f "118-980-214") "118"))
(constraint (= (f "118-980-214") "118"))
(constraint (= (f "118-980-214") "118"))
(constraint (= (f "244-655-094") "244"))
(constraint (= (f "244-655-094") "244"))
(constraint (= (f "244-655-094") "244"))
(constraint (= (f "830-941-991") "830"))
(constraint (= (f "830-941-991") "830"))
(constraint (= (f "830-941-991") "830"))
(constraint (= (f "911-186-562") "911"))
(constraint (= (f "911-186-562") "911"))
(constraint (= (f "911-186-562") "911"))
(constraint (= (f "002-500-200") "002"))
(constraint (= (f "002-500-200") "002"))
(constraint (= (f "002-500-200") "002"))
(constraint (= (f "113-860-034") "113"))
(constraint (= (f "113-860-034") "113"))
(constraint (= (f "113-860-034") "113"))
(constraint (= (f "457-622-959") "457"))
(constraint (= (f "457-622-959") "457"))
(constraint (= (f "457-622-959") "457"))
(constraint (= (f "986-722-311") "986"))
(constraint (= (f "986-722-311") "986"))
(constraint (= (f "986-722-311") "986"))
(constraint (= (f "110-170-771") "110"))
(constraint (= (f "110-170-771") "110"))
(constraint (= (f "110-170-771") "110"))
(constraint (= (f "469-610-118") "469"))
(constraint (= (f "469-610-118") "469"))
(constraint (= (f "469-610-118") "469"))
(constraint (= (f "817-925-247") "817"))
(constraint (= (f "817-925-247") "817"))
(constraint (= (f "817-925-247") "817"))
(constraint (= (f "256-899-439") "256"))
(constraint (= (f "256-899-439") "256"))
(constraint (= (f "256-899-439") "256"))
(constraint (= (f "886-911-726") "886"))
(constraint (= (f "886-911-726") "886"))
(constraint (= (f "886-911-726") "886"))
(constraint (= (f "562-950-358") "562"))
(constraint (= (f "562-950-358") "562"))
(constraint (= (f "562-950-358") "562"))
(constraint (= (f "693-049-588") "693"))
(constraint (= (f "693-049-588") "693"))
(constraint (= (f "693-049-588") "693"))
(constraint (= (f "840-503-234") "840"))
(constraint (= (f "840-503-234") "840"))
(constraint (= (f "840-503-234") "840"))
(constraint (= (f "698-815-340") "698"))
(constraint (= (f "698-815-340") "698"))
(constraint (= (f "698-815-340") "698"))
(constraint (= (f "498-808-434") "498"))
(constraint (= (f "498-808-434") "498"))
(constraint (= (f "498-808-434") "498"))
(constraint (= (f "329-545-000") "329"))
(constraint (= (f "329-545-000") "329"))
(constraint (= (f "329-545-000") "329"))
(constraint (= (f "380-281-597") "380"))
(constraint (= (f "380-281-597") "380"))
(constraint (= (f "380-281-597") "380"))
(constraint (= (f "332-395-493") "332"))
(constraint (= (f "332-395-493") "332"))
(constraint (= (f "332-395-493") "332"))
(constraint (= (f "251-903-028") "251"))
(constraint (= (f "251-903-028") "251"))
(constraint (= (f "251-903-028") "251"))
(constraint (= (f "176-090-894") "176"))
(constraint (= (f "176-090-894") "176"))
(constraint (= (f "176-090-894") "176"))
(constraint (= (f "336-611-100") "336"))
(constraint (= (f "336-611-100") "336"))
(constraint (= (f "336-611-100") "336"))
(constraint (= (f "416-390-647") "416"))
(constraint (= (f "416-390-647") "416"))
(constraint (= (f "416-390-647") "416"))
(constraint (= (f "019-430-596") "019"))
(constraint (= (f "019-430-596") "019"))
(constraint (= (f "019-430-596") "019"))
(constraint (= (f "960-659-771") "960"))
(constraint (= (f "960-659-771") "960"))
(constraint (= (f "960-659-771") "960"))
(constraint (= (f "475-505-007") "475"))
(constraint (= (f "475-505-007") "475"))
(constraint (= (f "475-505-007") "475"))
(constraint (= (f "424-069-886") "424"))
(constraint (= (f "424-069-886") "424"))
(constraint (= (f "424-069-886") "424"))
(constraint (= (f "941-102-117") "941"))
(constraint (= (f "941-102-117") "941"))
(constraint (= (f "941-102-117") "941"))
(constraint (= (f "331-728-008") "331"))
(constraint (= (f "331-728-008") "331"))
(constraint (= (f "331-728-008") "331"))
(constraint (= (f "487-726-198") "487"))
(constraint (= (f "487-726-198") "487"))
(constraint (= (f "487-726-198") "487"))
(constraint (= (f "612-419-942") "612"))
(constraint (= (f "612-419-942") "612"))
(constraint (= (f "612-419-942") "612"))
(constraint (= (f "594-741-346") "594"))
(constraint (= (f "594-741-346") "594"))
(constraint (= (f "594-741-346") "594"))
(constraint (= (f "320-984-742") "320"))
(constraint (= (f "320-984-742") "320"))
(constraint (= (f "320-984-742") "320"))
(constraint (= (f "060-919-361") "060"))
(constraint (= (f "060-919-361") "060"))
(constraint (= (f "060-919-361") "060"))
(constraint (= (f "275-536-998") "275"))
(constraint (= (f "275-536-998") "275"))
(constraint (= (f "275-536-998") "275"))
(constraint (= (f "548-835-065") "548"))
(constraint (= (f "548-835-065") "548"))
(constraint (= (f "548-835-065") "548"))
(constraint (= (f "197-485-507") "197"))
(constraint (= (f "197-485-507") "197"))
(constraint (= (f "197-485-507") "197"))
(constraint (= (f "455-776-949") "455"))
(constraint (= (f "455-776-949") "455"))
(constraint (= (f "455-776-949") "455"))
(constraint (= (f "085-421-340") "085"))
(constraint (= (f "085-421-340") "085"))
(constraint (= (f "085-421-340") "085"))
(constraint (= (f "785-713-099") "785"))
(constraint (= (f "785-713-099") "785"))
(constraint (= (f "785-713-099") "785"))
(constraint (= (f "426-712-861") "426"))
(constraint (= (f "426-712-861") "426"))
(constraint (= (f "426-712-861") "426"))
(constraint (= (f "386-994-906") "386"))
(constraint (= (f "386-994-906") "386"))
(constraint (= (f "386-994-906") "386"))
(constraint (= (f "918-304-840") "918"))
(constraint (= (f "918-304-840") "918"))
(constraint (= (f "918-304-840") "918"))
(constraint (= (f "247-153-598") "247"))
(constraint (= (f "247-153-598") "247"))
(constraint (= (f "247-153-598") "247"))
(constraint (= (f "075-497-069") "075"))
(constraint (= (f "075-497-069") "075"))
(constraint (= (f "075-497-069") "075"))
(constraint (= (f "140-726-583") "140"))
(constraint (= (f "140-726-583") "140"))
(constraint (= (f "140-726-583") "140"))
(constraint (= (f "049-413-248") "049"))
(constraint (= (f "049-413-248") "049"))
(constraint (= (f "049-413-248") "049"))
(constraint (= (f "977-386-462") "977"))
(constraint (= (f "977-386-462") "977"))
(constraint (= (f "977-386-462") "977"))
(constraint (= (f "058-272-455") "058"))
(constraint (= (f "058-272-455") "058"))
(constraint (= (f "058-272-455") "058"))
(constraint (= (f "428-629-927") "428"))
(constraint (= (f "428-629-927") "428"))
(constraint (= (f "428-629-927") "428"))
(constraint (= (f "449-122-191") "449"))
(constraint (= (f "449-122-191") "449"))
(constraint (= (f "449-122-191") "449"))
(constraint (= (f "568-759-670") "568"))
(constraint (= (f "568-759-670") "568"))
(constraint (= (f "568-759-670") "568"))
(constraint (= (f "312-846-053") "312"))
(constraint (= (f "312-846-053") "312"))
(constraint (= (f "312-846-053") "312"))
(constraint (= (f "943-037-297") "943"))
(constraint (= (f "943-037-297") "943"))
(constraint (= (f "943-037-297") "943"))
(constraint (= (f "014-270-177") "014"))
(constraint (= (f "014-270-177") "014"))
(constraint (= (f "014-270-177") "014"))
(constraint (= (f "658-877-878") "658"))
(constraint (= (f "658-877-878") "658"))
(constraint (= (f "658-877-878") "658"))
(constraint (= (f "888-594-038") "888"))
(constraint (= (f "888-594-038") "888"))
(constraint (= (f "888-594-038") "888"))
(constraint (= (f "232-253-254") "232"))
(constraint (= (f "232-253-254") "232"))
(constraint (= (f "232-253-254") "232"))
(constraint (= (f "308-722-292") "308"))
(constraint (= (f "308-722-292") "308"))
(constraint (= (f "308-722-292") "308"))
(constraint (= (f "342-145-742") "342"))
(constraint (= (f "342-145-742") "342"))
(constraint (= (f "342-145-742") "342"))
(constraint (= (f "568-181-515") "568"))
(constraint (= (f "568-181-515") "568"))
(constraint (= (f "568-181-515") "568"))
(constraint (= (f "300-140-756") "300"))
(constraint (= (f "300-140-756") "300"))
(constraint (= (f "300-140-756") "300"))
(constraint (= (f "099-684-216") "099"))
(constraint (= (f "099-684-216") "099"))
(constraint (= (f "099-684-216") "099"))
(constraint (= (f "575-296-621") "575"))
(constraint (= (f "575-296-621") "575"))
(constraint (= (f "575-296-621") "575"))
(constraint (= (f "994-443-794") "994"))
(constraint (= (f "994-443-794") "994"))
(constraint (= (f "994-443-794") "994"))
(constraint (= (f "400-334-692") "400"))
(constraint (= (f "400-334-692") "400"))
(constraint (= (f "400-334-692") "400"))
(constraint (= (f "684-711-883") "684"))
(constraint (= (f "684-711-883") "684"))
(constraint (= (f "684-711-883") "684"))
(constraint (= (f "539-636-358") "539"))
(constraint (= (f "539-636-358") "539"))
(constraint (= (f "539-636-358") "539"))
(constraint (= (f "009-878-919") "009"))
(constraint (= (f "009-878-919") "009"))
(constraint (= (f "009-878-919") "009"))
(constraint (= (f "919-545-701") "919"))
(constraint (= (f "919-545-701") "919"))
(constraint (= (f "919-545-701") "919"))
(constraint (= (f "546-399-239") "546"))
(constraint (= (f "546-399-239") "546"))
(constraint (= (f "546-399-239") "546"))
(constraint (= (f "993-608-757") "993"))
(constraint (= (f "993-608-757") "993"))
(constraint (= (f "993-608-757") "993"))
(constraint (= (f "107-652-845") "107"))
(constraint (= (f "107-652-845") "107"))
(constraint (= (f "107-652-845") "107"))
(constraint (= (f "206-805-793") "206"))
(constraint (= (f "206-805-793") "206"))
(constraint (= (f "206-805-793") "206"))
(constraint (= (f "198-857-684") "198"))
(constraint (= (f "198-857-684") "198"))
(constraint (= (f "198-857-684") "198"))
(constraint (= (f "912-827-430") "912"))
(constraint (= (f "912-827-430") "912"))
(constraint (= (f "912-827-430") "912"))
(constraint (= (f "560-951-766") "560"))
(constraint (= (f "560-951-766") "560"))
(constraint (= (f "560-951-766") "560"))
(constraint (= (f "142-178-290") "142"))
(constraint (= (f "142-178-290") "142"))
(constraint (= (f "142-178-290") "142"))
(constraint (= (f "732-196-946") "732"))
(constraint (= (f "732-196-946") "732"))
(constraint (= (f "732-196-946") "732"))
(constraint (= (f "963-875-745") "963"))
(constraint (= (f "963-875-745") "963"))
(constraint (= (f "963-875-745") "963"))
(constraint (= (f "881-865-867") "881"))
(constraint (= (f "881-865-867") "881"))
(constraint (= (f "881-865-867") "881"))
(constraint (= (f "234-686-715") "234"))
(constraint (= (f "234-686-715") "234"))
(constraint (= (f "234-686-715") "234"))
(constraint (= (f "720-330-583") "720"))
(constraint (= (f "720-330-583") "720"))
(constraint (= (f "720-330-583") "720"))
(constraint (= (f "593-065-126") "593"))
(constraint (= (f "593-065-126") "593"))
(constraint (= (f "593-065-126") "593"))
(constraint (= (f "671-778-064") "671"))
(constraint (= (f "671-778-064") "671"))
(constraint (= (f "671-778-064") "671"))
(constraint (= (f "252-029-036") "252"))
(constraint (= (f "252-029-036") "252"))
(constraint (= (f "252-029-036") "252"))
(constraint (= (f "700-322-036") "700"))
(constraint (= (f "700-322-036") "700"))
(constraint (= (f "700-322-036") "700"))
(constraint (= (f "882-587-473") "882"))
(constraint (= (f "882-587-473") "882"))
(constraint (= (f "882-587-473") "882"))
(constraint (= (f "964-134-953") "964"))
(constraint (= (f "964-134-953") "964"))
(constraint (= (f "964-134-953") "964"))
(constraint (= (f "038-300-876") "038"))
(constraint (= (f "038-300-876") "038"))
(constraint (= (f "038-300-876") "038"))
(constraint (= (f "158-894-947") "158"))
(constraint (= (f "158-894-947") "158"))
(constraint (= (f "158-894-947") "158"))
(constraint (= (f "757-454-374") "757"))
(constraint (= (f "757-454-374") "757"))
(constraint (= (f "757-454-374") "757"))
(constraint (= (f "872-513-190") "872"))
(constraint (= (f "872-513-190") "872"))
(constraint (= (f "872-513-190") "872"))
(constraint (= (f "566-086-726") "566"))
(constraint (= (f "566-086-726") "566"))
(constraint (= (f "566-086-726") "566"))
(constraint (= (f "938-242-504") "938"))
(constraint (= (f "308-916-545") "308"))
(constraint (= (f "623-599-749") "623"))
(constraint (= (f "981-424-843") "981"))
(constraint (= (f "118-980-214") "118"))
(constraint (= (f "244-655-094") "244"))
(constraint (= (f "830-941-991") "830"))
(constraint (= (f "911-186-562") "911"))
(constraint (= (f "002-500-200") "002"))
(constraint (= (f "113-860-034") "113"))
(constraint (= (f "457-622-959") "457"))
(constraint (= (f "986-722-311") "986"))
(constraint (= (f "110-170-771") "110"))
(constraint (= (f "469-610-118") "469"))
(constraint (= (f "817-925-247") "817"))
(constraint (= (f "256-899-439") "256"))
(constraint (= (f "886-911-726") "886"))
(constraint (= (f "562-950-358") "562"))
(constraint (= (f "693-049-588") "693"))
(constraint (= (f "840-503-234") "840"))
(constraint (= (f "698-815-340") "698"))
(constraint (= (f "498-808-434") "498"))
(constraint (= (f "329-545-000") "329"))
(constraint (= (f "380-281-597") "380"))
(constraint (= (f "332-395-493") "332"))
(constraint (= (f "251-903-028") "251"))
(constraint (= (f "176-090-894") "176"))
(constraint (= (f "336-611-100") "336"))
(constraint (= (f "416-390-647") "416"))
(constraint (= (f "019-430-596") "019"))
(constraint (= (f "960-659-771") "960"))
(constraint (= (f "475-505-007") "475"))
(constraint (= (f "424-069-886") "424"))
(constraint (= (f "941-102-117") "941"))
(constraint (= (f "331-728-008") "331"))
(constraint (= (f "487-726-198") "487"))
(constraint (= (f "612-419-942") "612"))
(constraint (= (f "594-741-346") "594"))
(constraint (= (f "320-984-742") "320"))
(constraint (= (f "060-919-361") "060"))
(constraint (= (f "275-536-998") "275"))
(constraint (= (f "548-835-065") "548"))
(constraint (= (f "197-485-507") "197"))
(constraint (= (f "455-776-949") "455"))
(constraint (= (f "085-421-340") "085"))
(constraint (= (f "785-713-099") "785"))
(constraint (= (f "426-712-861") "426"))
(constraint (= (f "386-994-906") "386"))
(constraint (= (f "918-304-840") "918"))
(constraint (= (f "247-153-598") "247"))
(constraint (= (f "075-497-069") "075"))
(constraint (= (f "140-726-583") "140"))
(constraint (= (f "049-413-248") "049"))
(constraint (= (f "977-386-462") "977"))
(constraint (= (f "058-272-455") "058"))
(constraint (= (f "428-629-927") "428"))
(constraint (= (f "449-122-191") "449"))
(constraint (= (f "568-759-670") "568"))
(constraint (= (f "312-846-053") "312"))
(constraint (= (f "943-037-297") "943"))
(constraint (= (f "014-270-177") "014"))
(constraint (= (f "658-877-878") "658"))
(constraint (= (f "888-594-038") "888"))
(constraint (= (f "232-253-254") "232"))
(constraint (= (f "308-722-292") "308"))
(constraint (= (f "342-145-742") "342"))
(constraint (= (f "568-181-515") "568"))
(constraint (= (f "300-140-756") "300"))
(constraint (= (f "099-684-216") "099"))
(constraint (= (f "575-296-621") "575"))
(constraint (= (f "994-443-794") "994"))
(constraint (= (f "400-334-692") "400"))
(constraint (= (f "684-711-883") "684"))
(constraint (= (f "539-636-358") "539"))
(constraint (= (f "009-878-919") "009"))
(constraint (= (f "919-545-701") "919"))
(constraint (= (f "546-399-239") "546"))
(constraint (= (f "993-608-757") "993"))
(constraint (= (f "107-652-845") "107"))
(constraint (= (f "206-805-793") "206"))
(constraint (= (f "198-857-684") "198"))
(constraint (= (f "912-827-430") "912"))
(constraint (= (f "560-951-766") "560"))
(constraint (= (f "142-178-290") "142"))
(constraint (= (f "732-196-946") "732"))
(constraint (= (f "963-875-745") "963"))
(constraint (= (f "881-865-867") "881"))
(constraint (= (f "234-686-715") "234"))
(constraint (= (f "720-330-583") "720"))
(constraint (= (f "593-065-126") "593"))
(constraint (= (f "671-778-064") "671"))
(constraint (= (f "252-029-036") "252"))
(constraint (= (f "700-322-036") "700"))
(constraint (= (f "882-587-473") "882"))
(constraint (= (f "964-134-953") "964"))
(constraint (= (f "038-300-876") "038"))
(constraint (= (f "158-894-947") "158"))
(constraint (= (f "757-454-374") "757"))
(constraint (= (f "872-513-190") "872"))
(constraint (= (f "566-086-726") "566"))

(check-synth)
Solution:
(define-fun f ((name String)) String (str.++ (str.at name 0) (str.++ (str.at name 1) (str.at name 2))))

Question:
(set-logic SLIA)

(synth-fun f ((name String)) String)

(declare-var name String)
(constraint (= (f "938-242-504") "504"))
(constraint (= (f "308-916-545") "545"))
(constraint (= (f "623-599-749") "749"))
(constraint (= (f "981-424-843") "843"))
(constraint (= (f "118-980-214") "214"))
(constraint (= (f "244-655-094") "094"))

(check-synth)
Solution:
(define-fun f ((name String)) String (str.++ (str.at name (+ 3 5)) (str.++ (str.at name (+ 4 5)) (str.at name (+ 5 5)))))

Question:
(set-logic SLIA)

(synth-fun f ((name String)) String)

(declare-var name String)
(constraint (= (f "+106 769-858-438") "769"))
(constraint (= (f "+83 973-757-831") "973"))
(constraint (= (f "+62 647-787-775") "647"))
(constraint (= (f "+172 027-507-632") "027"))
(constraint (= (f "+72 001-050-856") "001"))
(constraint (= (f "+95 310-537-401") "310"))
(constraint (= (f "+6 775-969-238") "775"))

(check-synth)
Solution:
