TraillingZeros

using System;

class traillingZeros
{
    static void Main()
    {
        int n = 50000;
        int sum = 1;
        int result = 0;

            for (int i = 1; i <= n; i++)
            {
                sum = n / (int)Math.Pow(5, i);
                result = result + sum;
                if (sum < 1)
                {
                    break;
                }
            }
        Console.WriteLine("Trailling Zeros of {0}! are {1}",n,result);
    }
}