using System;

public class Program

{

    public static void Main()

    {

        bool isTrue = true;

        Console.WriteLine("output: ");

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

            for (int j = 2; j<=100; j++) {

                if(i != j && i % j == 0) {

                    isTrue = false;

                    break;

                }

            }

            if(isTrue) {

                Console.Write("\t" + i);

            }

            isTrue = true;

        }

        Console.ReadLine();

    }

}