public static void Main()
Console.WriteLine("enter a number with 3 digits");
num=int.Parse(Console.ReadLine());
if(Math.Pow(h+ash+ah,3)==num)
Console.WriteLine("some remarkable charactiristics");
Console.WriteLine(Math.Pow(h+ash+ah,3));
Console.WriteLine("ERROR");
Console.WriteLine(Math.Pow(h+ash+ah,3)-num);