嘻嘻哈哈

Little Chief loves math. Most of all, he loves equations. He can solve any equation in the whole world. Recently he found one interesting and easy equationx1d+x2d+x3d ≡ m (mod N)Where x1, x2 and x

题目来源： http://www.codechef.com/AUG13/problems/SHIRO题目描述： Shiro is leading an army to save the princess of his kingdom "Abra". The princess has been made a prisoner by the neighboring kingdom "K