Write a C# Sharp program to compute the sum of two given non-negative integers x and y as long as the sum has the same number of digits as x. If the sum has more digits than x then return x without y

using System;
using System.Linq;
namespace exercises
{
   class Program
    {       
        static void Main(string[] args)
        {
            Console.WriteLine(test(4, 5));
            Console.WriteLine(test(7, 4));
            Console.WriteLine(test(10, 10));
            Console.ReadLine();
        }
        
        public static int test(int x, int y)
        {
           return (x + y).ToString().Length > x.ToString().Length ? x : x + y;
        }
    }
}