using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("n = 3");

        var n= int.Parse(Console.ReadLine());

        Console.WriteLine("Enter the numbers; ");

        var sum = 0;

        for (var i = 0; i < n; i++ )

        {

        var num = int. Parse (Console . ReadLine());

        sum = sum + num;

        }

        Console.WriteLine("sum = " + sum);

        }

    }

​

​

​