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package com.javarush.task.task13.task1326;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.reflect.Array;
import java.util.*;
/*
Сортировка четных чисел из файла
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
FileInputStream fileInputStream = new FileInputStream(reader.readLine());
String str = "";
int i = 0;
while ((i = fileInputStream.read()) != -1){
str = str + (char)i;
}
ArrayList<Integer> arr = new ArrayList<>();
for(String s : str.split(" ")){
arr.add(Integer.valueOf(s));
}
Collections.sort(arr);
for(int f : arr){
if(f % 2 == 0){
System.out.println(f);
}
}
reader.close();
fileInputStream.close();
}
}