1. Identifv languages of all variables listed belovw C.constant nt.constlfp.const int.const (oct.int l decint l hex-int) nt.suffix oct.mt 0 oct-digit dec int nonzero digit dec digit* hex-int (0x | OX) hex-digit hex-digit oct digit 01 |2 3 4 5 6 7 nonzero-digit 11213141516171819 dec digit 0 nonzero digit hex-digit dec-digit l a l b l c l d l e l f I AIBICl plElF int-suffix El usufix (1.sufix! Il.sufix l E) u stu ll.suffix 11 | LL dec fp- dec-digit dec-digit (E e ) exponent hex fp (0x | oX ) hex digit *(. hex digit | e | hex digit .) hex digit* exponent -> (+I - |E) dec digit dec digit* | dec digit * (. dec digit | dec digit .) dec digit*((E| e) exponent | e) p exponent