package com.javarush.task.task05.task0532;
import java.io.*;
/*
Задача по алгоритмам
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
int[] list = new int[10];
int max = 0;
for (int i = 0; i < list.length; i++)
{
String s = reader.readLine();
list[i] = Integer.parseInt(s);
}
for (int i = 0; i < list.length; i++)
{
if(list[i] > max ) {
max = list[i];
}
}
System.out.println(max);
}
}