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<>();
for(int i=0; i<10; i++){
list.add(reader.readLine());}
//System.out.println(list.get(5).length());
int a=0;
int b=0;
int a1 = list.get(0).length();
int b1 = list.get(0).length();
for(int i=1; i<9; i++){
if(a1>list.get(i).length()){
a1=list.get(i).length();
a=i;
}
if(b1<list.get(i).length()){
b1=list.get(i).length();
b=i;
}
}
// System.out.println(a);
//System.out.println(b);
if (a<b){
System.out.println(list.get(a));
}
if(a>b){
System.out.println(list.get(b));
}
}
}