/
package com.javarush.task.task07.task0712;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
/*
Самые-самые
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
ArrayList<String> list = new ArrayList<String>();
int min = 0;int max = 0;
for(int i = 0; i < 10; i++){
list.add(reader.readLine());
}
min = list.get(0).length();
for(int i = 0; i < list.size(); i++){
if(list.get(max).length() < list.get(i).length())
max = i;
if(list.get(min).length() > list.get(i).length())
min = i;
}
System.out.println(min < max ? list.get(min) : list.get(max));
}
}