using System;

public class Program

{

    public static void Main()

    {

    int number=2;

        while (number<100)

        {

            bool rishoni=true;

            int diviader=2;

            while (rishoni && diviader<number)

            {

                rishoni= !(number%diviader==0);

                    diviader=diviader+1;

            }

            if (rishoni)

                Console.WriteLine(number);

            number++;

        }

    }

}