using System;

public class Program

{

    public static void Main()

    {

        string c = "O";

        int counter1 = 1;

        int counter2 = 1;

        while (counter2 <= 7)

        {

            while (counter1 <= 9)

            {

                Console.Write(c);

                counter1 = counter1 + 1;

            }

            Console.WriteLine();

            counter2 = counter2 + 1;

            counter1 = 1;

            }

        }

    }