10@a\(b\)c@abc 20@a(@a( 32@a\(@EPAREN 42@a\(b@EPAREN 50@a(b@a(b 60@a)@a) 72@a\)@EPAREN 82@\)@EPAREN 90@a\(\)b@ab 100@a^b@a^b@TO CORRECT 110@a$b@a$b 120@\($\)\(^\)@@ 130@a*\(^b$\)c*@b 140@|@| 150@*@* 160@\(\)@abc 172@\(\{1\}a\)@BADRPT@TO CORRECT 180@^*@* 192@^\{1\}@BADRPT@TO CORRECT 200@{@{ 211@a\(b*\)c\1d@abbcbd 221@a\(b*\)c\1d@abbcbbbd 231@^\(.\)\1@abc 240@a\(\([bc]\)\2\)*d@abbccd 251@a\(\([bc]\)\2\)*d@abbcbd 260@a\(\(b\)*\2\)*d@abbbd 270@\(a\)\1bcd@aabcd 280@\(a\)\1bc*d@aabcd 290@\(a\)\1bc*d@aabd 300@\(a\)\1bc*d@aabcccd 310@\(a\)\1bc*[ce]d@aabcccd@TO CORRECT 320@^\(a\)\1b\(c\)*cd$@aabcccd 330@a\(*\)b@a*b 340@a\(**\)b@ab 352@a\(***\)b@BADRPT@TO CORRECT 360@*a@*a 370@**a@a 382@***a@BADRPT@TO CORRECT 390@a\{1\}b@ab 400@a\{1,\}b@ab 410@a\{1,2\}b@aab 422@a\{1@EBRACE 432@a\{1a@EBRACE 442@a\{1a\}@BADBR 452@a\{,2\}@BADBR 462@a\{,\}@BADBR 472@a\{1,x\}@BADBR 482@a\{1,x@EBRACE 492@a\{32768\}@BADBR 502@a\{1,0\}@BADBR 510@ab\{0,0\}c@abcac 520@ab\{0,1\}c@abcac 530@ab\{0,3\}c@abbcac 540@ab\{1,1\}c@acabc 550@ab\{1,3\}c@acabc 560@ab\{2,2\}c@abcabbc 570@ab\{2,4\}c@abcabbc 582@a\{1\}\{1\}@BADRPT@TO CORRECT 592@a*\{1\}@BADRPT@TO CORRECT 602@a\{1\}*@BADRPT@TO CORRECT 611@a\(b\)?c\1d@acd 620@-\{0,1\}[0-9]*$@-5 63