<br />//http://acm.pku.edu.cn/JudgeOnline/problem?id=1753<br />#include <stdio.h><br />#include <string.h><br />#include <iostream><br />using namespace std;<br />char str[5][5];<br />bool state[65536];<br />int step[65536];<br />int q[65536]

<br />//http://acm.pku.edu.cn/JudgeOnline/problem?id=2109<br /><br />import java.math.*;<br />import java.util.Scanner;<br /><br />public class Main<br />{<br />   public static void main(String[] args)<br />   {    <br />      BigInteger L=n