Почему? Кто может объяснить?
package com.javarush.task.task04.task0417;
/*
Существует ли пара?
*/
import java.io.*;
public class Solution {
public static void main(String[] args) throws Exception {
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);
}
if (b == c)
{
System.out.println(b + " " + c);
}
if (a == c)
{
System.out.println(a + " " + c);
}
if (a == b && b == c && a == c)
{
System.out.println(a + " " + b + " " + c);
}
}
}