using System;
using System.Collections.Generic;

class Program
{
    static HashSet<string> alreadyFired = new HashSet<string>();
    static Random rng = new Random();

    static void Main()
    {
        string? line;
        while ((line = Console.ReadLine()) != null)
        {
            // GAME STARTED → place ships
            if (line.StartsWith("GAME STARTED"))
            {
                Console.WriteLine("PLACE B A1 N");
                Console.WriteLine("PLACE B C1 N");

                Console.WriteLine("PLACE C E1 N");

                Console.WriteLine("PLACE D G1 N");
                Console.WriteLine("PLACE D I1 N");

                Console.WriteLine("PLACE P A7 D");
                Console.WriteLine("PLACE P A9 D");
                Console.WriteLine("PLACE P H8 N");

                Console.WriteLine("READY");
            }

            // YOUR TURN → fire randomly
            if (line.StartsWith("YOUR TURN"))
            {
                string pos;
                do
                {
                    int row = rng.Next(1, 11);   // 1–10
                    char rowChar = (char)('A' + row - 1);
                    int col = rng.Next(1, 11);   // 1–10
                    pos = $"{rowChar}{col}";
                }
                while (alreadyFired.Contains(pos));

                Console.WriteLine($"FIRE {pos}");
                alreadyFired.Add(pos);
            }

            // GAME OVER → exit
            if (line.StartsWith("GAME OVER"))
            {
                return;
            }
        }
    }
}