Metric Convertor

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DomashnoMetricConverter
{
    class Program
    {
        static void Main(string[] args)
        {
            double MetricValue = double.Parse(Console.ReadLine());
            string MetricInputType = Console.ReadLine();
            string MetricOutputType = Console.ReadLine();
            switch (MetricInputType)
            {
                case "m":
                    if (MetricOutputType == "cm")
                    {
                        Console.WriteLine("{0:F3}", MetricValue * 100);
                    }
                    else if (MetricOutputType == "mm")
                    {
                        Console.WriteLine("{0:F3}", MetricValue * 1000);
                    }
                    else
                    {
                        Console.WriteLine("{0:F3}", MetricValue);
                    }
                    break;
                case "cm":
                    if (MetricOutputType == "m")
                    {
                        Console.WriteLine("{0:F3}", MetricValue / 100);
                    }
                    else if (MetricOutputType == "mm")
                    {
                        Console.WriteLine("{0:F3}", MetricValue * 10);
                    }
                    else
                    {
                        Console.WriteLine("{0:F3}", MetricValue);
                    }
                    break;
                case "mm":
                    if (MetricOutputType == "m")
                    {
                        Console.WriteLine("{0:F3}", MetricValue / 1000);
                    }
                    else if (MetricOutputType == "cm")
                    {
                        Console.WriteLine("{0:F3}", MetricValue / 10);
                    }
                    else
                    {
                        Console.WriteLine("{0:F3}", MetricValue);
                    }
                    break;
            }
        }
    }
}