using System;

public class Program

{

    public static void Main()

    {

        int num,sum = 0;

        while (sum < 50)

        {

            Console.Write("Enter a number: ");

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

            sum += num;

        }

        Console.WriteLine("Total sum: " + sum);

    }

}

​

    }

}