using System;

public class Program

{

    public static void Main()

    {

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

        {

            bool prime = true;

            for (int j = 2;j<i;j++)

            {

                if (i % j == 0)

                {

                    prime = false;

                    break;

                }

                    if (prime)

                    {

                        Console.WriteLine(i);

                    }

            }

        }

    }

}