04_converterMeasuringUnit

using System;

namespace _04_converterMeasuringUnit
{
    class Program
    {
        static void Main(string[] args)
        {
            int number = int.Parse(Console.ReadLine());
            string input = Console.ReadLine();
            string output = Console.ReadLine();

            if (input == "m" && output == "mm")
            {
                double sum = number * 1000;
                Console.WriteLine($"{sum:F3}");

            }
            else if (input =="mm" && output == "m")
            {
                double summ = number*1.0 * 0.001;
                Console.WriteLine($"{summ:F3}");
            }
            else if (input == "m" && output == "cm")
            {
                number = number * 100;
                Console.WriteLine($"{number:F3}");
            }
            else if (input == "cm" && output == "m")
            {
                number = number / 100;
                Console.WriteLine($"{number:F3}");
            }
            else if (input == "cm" && output == "mm")
            {
                number = number * 10;
                Console.WriteLine($"{number:F3}");
            }
            else if (input == "mm" && output == "cm")
            {
                number = number / 10;
                Console.WriteLine($"{number:F3}");
            }

        }
    }
}