JAVA解决大数

import java.math.BigInteger;
import java.math.BigDecimal;
import java.util.Scanner;

class Main{
public static void main(String args[]){
Scanner cin = new Scanner(System.in);
while(cin.hasNext()){
int b = cin.nextInt();
BigInteger p,m,res;
if(b == 0)break;
p = cin.nextBigInteger(b);    //以b进制读入，结果自己主动转换成十进制
m = cin.nextBigInteger(b);
res = p.mod(m);
String ans = res.toString(b);  //将结果转换成b进制的字符串
System.out.println(ans);
}
}
}