Digits in a number

Create a program in C# to calculate how many digits has a positive integer.

If the user enters a negative integer, the program must show a warning message, and proceed with the equivalent positive number.

Input

112
-5345

Output

2 digits
(Warning: it is a negative number)
4 digits

Solution

using System;
public class DigitsNumber
{
    public static void Main(string[] args)
    {
        int x = Convert.ToInt32(Console.ReadLine());
        int digits = 0;

        if (x < 0)
        {
            Console.WriteLine("(Warning: it is a negative number)");
            x = -x;
        }

        while (x > 0)
        {
            x /= 10;
            digits++;
        }

        if (digits == 0)
        { 
            digits = 1;
        }

        Console.WriteLine("{0} digits", digits);
    }
}