str = "Conference 11-2222-a.b.c (1 member rate: 32000 flags: running|answered|enforce_min|dynamic|exit_sound|enter_sound) 176;014802813@mydomain;0182e4e4-193b-4d63-9bef-b597f0655c83;jdo ;014802813;hear|speak|talking|floor;0;0;0;0\n\nConference 10-1234.c.fdf.c (1 member rate: 32000 flags: running|answered|enforce_min|dynamic|exit_sound|enter_sound)175;.net/4122@mydomain;77c1f301-85e1-4275-9c539e5927b87d6;4122;hear|speak|talking|floor;0;0;0;0"
print(string.match(str, 'Conference 10%-(%d%d%d%d)') )
 

c3RyID0gIkNvbmZlcmVuY2UgMTEtMjIyMi1hLmIuYyAoMSBtZW1iZXIgcmF0ZTogMzIwMDAgZmxhZ3M6IHJ1bm5pbmd8YW5zd2VyZWR8ZW5mb3JjZV9taW58ZHluYW1pY3xleGl0X3NvdW5kfGVudGVyX3NvdW5kKSAxNzY7MDE0ODAyODEzQG15ZG9tYWluOzAxODJlNGU0LTE5M2ItNGQ2My05YmVmLWI1OTdmMDY1NWM4MztqZG8gOzAxNDgwMjgxMztoZWFyfHNwZWFrfHRhbGtpbmd8Zmxvb3I7MDswOzA7MFxuXG5Db25mZXJlbmNlIDEwLTEyMzQuYy5mZGYuYyAoMSBtZW1iZXIgcmF0ZTogMzIwMDAgZmxhZ3M6IHJ1bm5pbmd8YW5zd2VyZWR8ZW5mb3JjZV9taW58ZHluYW1pY3xleGl0X3NvdW5kfGVudGVyX3NvdW5kKTE3NTsubmV0LzQxMjJAbXlkb21haW47NzdjMWYzMDEtODVlMS00Mjc1LTljNTM5ZTU5MjdiODdkNjs0MTIyO2hlYXJ8c3BlYWt8dGFsa2luZ3xmbG9vcjswOzA7MDswIgpwcmludChzdHJpbmcubWF0Y2goc3RyLCAnQ29uZmVyZW5jZSAxMCUtKCVkJWQlZCVkKScpICkK