.
package com.javarush.task.pro.task05.task0507;
import java.util.Scanner;
/*
Максимальное из N чисел
*/
public class Solution {
public static int[] array;
public static void main(String[] args) throws Exception {
Scanner console = new Scanner(System.in);
int N = console.nextInt();
array = new int[N];
for (int i = 0; i < N;i++){
array[i] = console.nextInt();
}
int max = array[0];
for (int i = 0; i < N;i++){
if (array[i] > i)
max = array [i];
i++;
}
System.out.println(max);
}
}