using System;
public class Program
{
public static void Main()
var val1 = "5,7";
var val2 = "5,7";
if (Double.Parse(val1.ToString().Replace(",", ".")) !=
Double.Parse(val2.ToString().Replace(",", ".")))
Console.WriteLine(
Double.Parse(val1.ToString()) + " is NOT " +
Double.Parse(val2.ToString())
);
}