MetricConverter

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
class MetricConverter{
    static void Main(string[] args)
    {
        double numbersToConvert = double.Parse(Console.ReadLine());
        string firstNumber = Console.ReadLine();
        string secondNumber = Console.ReadLine();
        var currencies = new Dictionary<string, double>()
        {
            {"m", 1 },
            {"mm", 1000 },
            {"cm", 100 },
            {"mi", 0.000621371192},
            {"in", 39.3700787},
            {"km", 0.001},
            {"ft", 3.2808399},
            {"yd", 1.0936133}
        };
        double result = numbersToConvert / currencies[firstNumber] * currencies[secondNumber];

        Console.WriteLine("{0} {1}", result, secondNumber);
    }
}