Description 年轻的探险家来到了一个印第安部落里。在那里他和酋长的女儿相爱了，于是便向酋长去求亲。

题目描述 乐是做作业，给定正整数 N,M，要求计算Concatenate（1……N）mod M的值，其中Concatenate是指将1到N拼起来得到的数。如N=13，Concatenate=12345678910111213

Problem Description We believe that every inhabitant of this universe eventually will find a way to live together in harmony and peace; that trust, patience, kindness and loyalty will exist between ev