package com.javarush.task.task07.task0701;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
/*
Массивный максимум
*/
public class Solution {
public static void main(String[] args) throws Exception {
int[] array = initializeArray();
int max = max(array);
System.out.println(max);
}
public static int[] initializeArray() throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
int [] array = new int[20];
for (int i = 0; i < array.length; i++) {
String s = reader.readLine();
array [i] = Integer.parseInt(s);
}
return array;
}
public static int max(int[] array) {
int max = array [20];
if (array[i] > max) {
max = array[i];
}
return max;
}
}