
2 abc a d def abc.d.d.abc.abcd.
a.def.def.a.UNK.
样例2输入
3
abc a
d def
abcd xxxx
abc,(d)d!-abc?abcd
样例2输出
a,(def)def!-a?xxxx
样例3输入
1
abcdefghij klmnopqrst
!()-[]{}\|;:'",./?<>abcdefghijklmnopqrstuvwxyz
样例3输出
!()-[]{}\|;:'",./?<>UNK