using System;

class Program
{
    static void Main()
    {
        //int number = 17;
        int number=0;
    
        Console.WriteLine("Accept number:");
        
        number = Convert.ToInt32(Console.ReadLine());
        bool isPrime = true;
        
        Console.WriteLine(number);

        for (int i = 2; i <= Math.Sqrt(number); i++)
        {
            if (number % i == 0)
            {
                isPrime = false;
                break;
            }
        }

        Console.WriteLine("Is Prime: " + isPrime);
    }
}