using System;

public class Program

{

    public static void Main()

    {

        double factor = 2.9;

        for (int i = 0; i < 100; i++)

        {

            int result = (int)Math.Round((i * factor) / 4.0, MidpointRounding.AwayFromZero) * 4;

            Console.WriteLine($"{i} -> {result}");  

        }

    }

}