package de.codegym.task.task07.task0708;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
/*
Längste Zeichenkette
*/
public class Solution {
private static List<String> strings;
public static void main(String[] args) throws Exception {
//schreib hier deinen Code
strings = new ArrayList<>();
Scanner sc = new Scanner(System.in);
for(int i = 1; i<=5; i++){
String s1 = sc.nextLine();
strings.add(s1);
}
int max = 0;
for(int i = 1; i<strings.size(); i++){
if(strings.get(i).length() >= max){
max = strings.get(i).length();
}
}
for(int i = 0; i<strings.size(); i++){
if(strings.get(i).length() == max){
System.out.println(strings.get(i));
}
}
}
}