public class Main{
    
    public static void main(String[] args){
        for(short i = 0; i < 3; i++){
            
            for(short j = 0; j < i; j++)
                System.out.print(".");
            
            if(i % 2 == 0)
                for(int j = 0; j < 104; j++)
                    System.out.print("L    ");
            else
                for(short j = 0; j < 173; j++)
                    System.out.print("O  ");
            System.out.println();
        }
    }

}