Не могу понять, в чем ошибка

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 {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String x = reader.readLine();
        int a = Integer.parseInt(x);

        String y = reader.readLine();
        int b = Integer.parseInt(y);

        String z = reader.readLine();
        int c = Integer.parseInt(z);

        if (a == b && a == c && b == c)
            System.out.print(a + " " + b + " " + c);
        else if (a == c)
            System.out.print(a + " " + c);
        else if (b == c)
            System.out.print(b + " " + c);
        else if (a == b);
            System.out.print(a + " " + b);
    }
}