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