TsvetelinaPasheva/FirstStepInCodingLab/04.InchesToCentimeters

using System;

namespace _04.InchesToCentimeters
{
    class Program
    {
        static void Main(string[] args)
        {



            double number = double.Parse(Console.ReadLine());
            Console.WriteLine(number * 2.54);




        }
    }
}