Metric Converter

using System;

namespace MetricConvertor
{
    public class Program
    {
        public static void Main(string[] args)
        {
            double value = double.Parse(Console.ReadLine());
            string input = Console.ReadLine();
            string output = Console.ReadLine();

            if (input == "mm")
            {
                value /= 1000.0;
            }
            else if (input == "cm")
            {
                value /= 100.0;
            }
            else if (input == "mi")
            {
                value /= 0.000621371192;
            }
            else if (input == "in")
            {
                value /= 39.3700787;
            }
            else if (input == "km")
            {
                value /= 0.001;
            }
            else if (input == "ft")
            {
                value /= 3.2808399;
            }
            else if (input == "yd")
            {
                value /= 1.0936133;
            }

            if (output == "mm")
            {
                value *= 1000.0;
            }
            else if (output == "cm")
            {
                value *= 100.0;
            }
            else if (output == "mi")
            {
                value *= 0.000621371192;
            }
            else if (output == "in")
            {
                value *= 39.3700787;
            }
            else if (output == "km")
            {
                value *= 0.001;
            }
            else if (output == "ft")
            {
                value *= 3.2808399;
            }
            else if (output == "yd")
            {
                value *= 1.0936133;
            }

            Console.WriteLine($"{value} {output:f8}");
        }
    }
}