UVa 10551

　　题目大意：关于大数的mod和进制转换，直接使用Java的BigInteger类，正在copy式学习中...

import java.io.*;
import java.util.*;
import java.math.*;

class Main
{
    public static void main(String[] args)
    {
        Scanner sc = new Scanner(System.in);
        while (true)
        {
            int base = sc.nextInt();
            if (base == 0)  break;
            String p_str = sc.next();
            BigInteger p = new BigInteger(p_str, base);
            String m_str = sc.next();
            BigInteger m = new BigInteger(m_str, base);
            System.out.println((p.mod(m)).toString(base));
        }
    }
}