1Regexp: a{2,3} 2a: Fail 3aa: Ok 4aaa: Ok 5aaaa: Fail 6Regexp: ba{2,3}c 7bac: Fail 8baac: Ok 9baaac: Ok 10baaaac: Fail 11Regexp: a(b|c){2,3}d 12abcd: Ok 13acccd: Ok 14abd: Fail 15accccd: Fail 16