Почему не работает деление по модулю?
package com.javarush.task.task04.task0417;
/*
Существует ли пара?
*/
import java.io.*;
import java.util.*;
public class Solution {
public static void main(String[] args) throws Exception {
InputStream inputStream = System.in;
Reader inputStreamReader = new InputStreamReader(inputStream);
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String A = bufferedReader.readLine();
String B = bufferedReader.readLine();
String C = bufferedReader.readLine();
int a=Integer.parseInt(A);
int b=Integer.parseInt(B);
int c=Integer.parseInt(C);
int a1=a%b;
int b1=a%c;
int c1=b%c;
if (a1==0) {System.out.print(A+" ");}
if (b1==0) {System.out.print(B+" ");}
if (c1==0) {System.out.print(C+" ");}
}
}