Пожалуйста
package com.javarush.task.task04.task0417;
/*
Существует ли пара?
*/
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class Solution {
public static void main(String[] args) throws Exception {
//напишите тут ваш код
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
int a = Integer.parseInt(reader.readLine());
int b = Integer.parseInt(reader.readLine());
int c = Integer.parseInt(reader.readLine());
if (a == b)
System.out.println(a + " " + b);
else if (a == c)
System.out.println(a + " " + c);
else if (c == b)
System.out.println(c + " " + b);
else if (c == b && b == a && a == c)
System.out.println(c + " " + b + " " + a);
}
}