using System;

using System.Security.Cryptography;

public class Program

{

    public static void Main()

    {

        var odds = 1.13m;

        var neutralProba = 0.802707m;

        var operatorMargin = 1.08m;

​

        var targetMargin = 1.05m;

​

        var runNumber = 100000;

​

        var stake = 100;

        var totalStake = 100;

        var paidAmount = 0m;

        var wonNumber = 0;

​

        for (int i = 0; i < runNumber; i++)

        {

            var oddsWithRepartition = 1 / (neutralProba * operatorMargin);

            var ratio = odds / oddsWithRepartition;

​

            var targetProba = neutralProba * oddsWithRepartition / targetMargin * ratio;

​

            var bytes = RandomNumberGenerator.GetBytes(8);

            var random = (decimal)BitConverter.ToUInt64(bytes, 0) / ulong.MaxValue * 1.0m;

​

            if (random <= targetProba)

            {

                totalStake += stake;

                wonNumber++;

                paidAmount += stake * odds;

            }

        }

​

        Console.WriteLine("Won / Lost: {0} / {1}", wonNumber, runNumber - wonNumber);

        Console.WriteLine("GGR: {0}", totalStake - paidAmount);

        Console.WriteLine("RTP: {0}", paidAmount / totalStake);

    }

}