Help. What's wrong in this code?

using System;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            int N, A, B;
            do
            {
                Console.Write("ВВедите N: ");
                N = int.Parse(Console.ReadLine());
            } while (N < 1 || N > 100);

            do
            {
                A = int.Parse(Console.ReadLine());
            } while (A < 1 || A > 100);
            do
            {
                B = int.Parse(Console.ReadLine());
            } while (B < 1 || B > 100);

                int R = ((A*B) * 2)*N;
                Console.WriteLine(R);
        }
    }
}

> Console.Write("ВВедите N: ");
Delete this line. You should not output anything except the answer. Just think how the system can check it otherwise?

I deleted that line, but I still get the Crash on the first test(((

All three numbers are given in the same line. So, when you try to parse it as a single number, it crashes.