using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Largest_Elemnt_In_Array
{
    class Program
    {
        static void Main(string[] args)
        {
            int counter = int.Parse(Console.ReadLine());
            int[] arr = new int [counter];

            for (int i = 0; i < counter; i++)
            {
                arr[i] = int.Parse(Console.ReadLine());

            }

            int largestNumber = FindLargestNumber(arr);
            Console.WriteLine(largestNumber);
        }

        int FindLargestNumber(int[] arr){
            let largestNumber = int.MinValue;
            for (int i = 0; i < arr.Length; i++)
            {
                if(arr[i] > largestNumber) {
                    largestNumber = arr[i]
                }
            }

            return largestNumber;
        }
    }
}