using System.IO;


class Program
{
    static void Main()
    {
        var x = 1;
        var y = Foo(x);
    }
    static decimal Foo(decimal x)
    {
        using(var w = new StreamWriter(Stream.Null))
        {
            w.Write(x);
            return 1.0M/x + w.GetHashCode();
        }
    }
}