Introduction - If you have any usage issues, please Google them yourself
source of the problem is a solution. The problem is that you have the head of the L series, the series can occur n characters, but also gives m tall Series, for the number of ministers to the n only by those strings of string. Input examples : 4 5 6 ABB BCA BCD CAB CDD DDA results of two. and 5 4 5 E D C B A to the results of the six 25