进制转换

import java.util.Scanner;
 
public class Main {
 
    public static void main(String[] args) {
           Scanner in = new Scanner(System.in);
           while(in.hasNextInt()){
               int m = in.nextInt(); //integer
               int n = in.nextInt(); //binary
               String str = "";
               boolean flag = false;
               if(m<=0){
                   flag = true;
                   m = m *(-1);
               }
               while(m>0){
                   int temp = m%n;
                   if(temp>=10){
                       temp = temp+55;
                       str = (char)temp + str;
                   }else{
                       str = temp + str;
                   }
                   m = m/n;
               }
               if(flag)
                   str = "-"+str;
               System.out.println(str);
           }
           in.close();
    }
}