MaxNumber

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

namespace MaxNumber
{
    class Program
    {
        static void Main(string[] args)
        {
            var end = int.Parse(Console.ReadLine());
            var maxNumber = int.MinValue;

            for (int i = 0; i < end; i++)
            {
                var num = int.Parse(Console.ReadLine());
                if (num > maxNumber)
                {
                    maxNumber = num;
                }
            }
            Console.WriteLine(maxNumber);

        }
    }
}