0@a\(b\)c@abc

0@a(@a(

2@a\(@EPAREN

2@a\(b@EPAREN

0@a(b@a(b

0@a)@a)

2@a\)@EPAREN

2@\)@EPAREN

0@a\(\)b@ab

0@a^b@a^b

0@a$b@a$b

0@\($\)\(^\)@@TO CORRECT

0@a*\(^b$\)c*@b

0@|@|

0@*@*

0@\(\)@abc

2@\(\{1\}a\)@BADRPT@TO CORRECT

0@^*@*

2@^\{1\}@BADRPT@TO CORRECT

0@{@{

1@a\(b*\)c\1d@abbcbd

1@a\(b*\)c\1d@abbcbbbd

1@^\(.\)\1@abc

0@a\(\([bc]\)\2\)*d@abbccd

1@a\(\([bc]\)\2\)*d@abbcbd

0@a\(\(b\)*\2\)*d@abbbd

0@\(a\)\1bcd@aabcd

0@\(a\)\1bc*d@aabcd

0@\(a\)\1bc*d@aabd

0@\(a\)\1bc*d@aabcccd

0@\(a\)\1bc*[ce]d@aabcccd@TO CORRECT

0@^\(a\)\1b\(c\)*cd$@aabcccd

0@a\(*\)b@a*b

0@a\(**\)b@ab

2@a\(***\)b@BADRPT@TO CORRECT

0@*a@*a

0@**a@a

2@***a@BADRPT@TO CORRECT

0@a\{1\}b@ab

0@a\{1,\}b@ab

0@a\{1,2\}b@aab

2@a\{1@EBRACE

2@a\{1a@EBRACE

2@a\{1a\}@BADBR

0@a\{,2\}@a\{,2\}

0@a\{,\}@a\{,\}

2@a\{\}@BADBR

2@a\{1,x\}@BADBR

2@a\{1,x@EBRACE

2@a\{32768\}@BADBR

2@a\{1,0\}@BADBR

0@ab\{0,0\}c@abcac

0@ab\{0,1\}c@abcac

0@ab\{0,3\}c@abbcac

0@ab\{1,1\}c@acabc

0@ab\{1,3\}c@acabc

0@ab\{2,2\}c@abcabbc

0@ab\{2,4\}c@abcabbc

2@a\{1\}\{1\}@BADRPT@TO CORRECT

2@a*\{1\}@BADRPT@TO CORRECT

2@a\{1\}*@BADRPT@TO CORRECT

1@a\(b\)?c\1d@acd

0@-\{0,1\}[0-9]*$@-5

2@b\{1000000000\}@ESIZE