using System;

public class Program

{

    public const int LevelYouAre = 104;

    public const int MaxLevel = 170;

    private static decimal[] ExperienceArray = new decimal[MaxLevel];

    public static void Main()

    {

        var totalExp = 0L;

        for (var levelIndex = 0; levelIndex < MaxLevel; levelIndex++)

        {

            var level = levelIndex + 1M;

            var levelExp = (long)(level + (decimal)(300D * Math.Pow(2D, (double)(level / 7M))));

            totalExp += levelExp;

            ExperienceArray[levelIndex] = (decimal)((totalExp & 0xffffffffc) / 4d);

        }

        Console.Out.WriteLine(ExperienceArray[LevelYouAre]);

    }

}