using System;

public class Program

{

    static public void Main ()

    {

    int []A = {9, 4, 454, 6, -363, 10, 7};

    int n = A.Length;

    Console.WriteLine(MaxItem(A, n));

    }

    public static int MaxItem(int []A,int n)

    {

        if(n == 1)

            return A[0];

        return Math.Max(A[n - 1],MaxItem(A, n - 1));

    }

}