public static void Main()
Console.WriteLine("enter number in x =");
x = int.Parse(Console.ReadLine());
Console.WriteLine("x1000= {0} x100={1} x10={2} x1={3}", x1000, x100, x10, x1);
Console.WriteLine("zogi = {0} fardi = {1}", y, t);
Console.WriteLine("x1000= {0} x100={1} x10={2} x1={3}", x1000 * 1000, x100 * 100, x10 * 10, x1);
int new_number = x1 * 1000 + x10 * 100 + x100 * 10 + x1000 / 1;
Console.WriteLine("new_number={0}", new_number);
Console.WriteLine("next_number={0}", next_number);