using System;

public class Program
{
    public static int High = 1023;
    public static int Low = 126;
    public static float ComputeRain(float raw) => Math.Max(0, ((raw-Low)/(High-Low) * 100));
    public static int Compute(int raw) => (int)Math.Round(ComputeRain(raw));
    public static void Main()
    {
        Console.WriteLine(Compute(1023));
        Console.WriteLine(Compute(500));
        Console.WriteLine(Compute(133));
        Console.WriteLine(Compute(0));
    }
}