using System;

class Prime
{
    static void Main()
    {
        //int num = int.Parse(Console.ReadLine());
        int num = 17;
        int count = 0;
        if (num < 0)
        {
            for (int i = -1; i <= (num / 2); i--)
            {
                if (num % i == 0)
                {
                    count++;
                }
            }
            if (count == 1)
            {
                Console.WriteLine("The number is prime");
            }
        }
        else
        for (int i = 1; i <= (num / 2); i++)
        {
            if (num % i == 0)
            {
                count++;
            }
        }
        if (count == 1)
        {
            Console.WriteLine("The number is prime");
        }
        else
        {
            Console.WriteLine("The number is NOT prime");
        }
    }
}