using System;

using System.Collections.Generic;

using System.Data;

using System.Threading;

using System.Linq;

using System.Globalization;

​

public class Program

{       

    public static void Main()

    {

        int toMoney = 100;

        string sum = "1.0";

        int num = 0;

        int swc = 1000;

        sum = sum.Replace("-", "");

        Console.WriteLine(sum);

        if(!Int32.TryParse(sum, out num))

        {

            Console.WriteLine("Ошибка!");

            return;

        }

        if (swc < num)

        {

            Console.WriteLine("NOPE!");

            return;

        }

        swc -= num;

        Console.WriteLine("Вы получили: $"+num * toMoney);

        Console.WriteLine("У вас осталось SWC: "+swc);

​

        Console.WriteLine("Итог: "+num);

    }

}

​