using System;

public class Program

{

    public static void Main()

    {

        int primeNumbers = 0;

        bool prime = true;

        for (int c = 2; c <= 100; c++)

        {

            prime = true;

            if (c % 2 == 0 && c != 2)

                prime = false;

            else if (c % 3 == 0 && c != 3)

                prime = false;

            else if (c % 5 == 0 && c != 5)

                prime = false;

            else if (c % 7 == 0 && c != 7)

                prime = false;

            if (prime)

            {

                primeNumbers++;

                Console.WriteLine(c.ToString());

            }

            //else

                //Console.WriteLine("NOT PRIME");

        }

    }

}