If you got WA, especially if you got WA9
First line is input string, second is answer

TEST. TEST? TEST! TEST.
Test. Test? Test! Test.

??????????????????????
??????????????????????

!TEST!TEST!
!Test!Test!

A
A

TEST
    TEST
        TEST
Test
    test
        test

TEST     T      TEST
Test     t      test

Also try empty input.

Edited by author 30.09.2018 19:14