if (SY == 10)
            {
                if (SX == 3)
                Console.WriteLine("FIRE");
                else
                Console.WriteLine("HOLD");
            }
            if (SY == 9)
            {
                if (SX == 3)
                Console.WriteLine("FIRE");
                else
                Console.WriteLine("HOLD");// either:  FIRE (ship is firing its phase cannons) or HOLD (ship is not firing).
            }
            if (SY == 8)
            {
                if (SX == 3)
                Console.WriteLine("FIRE");
                else
                Console.WriteLine("HOLD");
            }
            if (SY == 7)
            {
                if (SX == 7)
                Console.WriteLine("FIRE");
                else
                Console.WriteLine("HOLD");
            }
            if (SY == 6)
            {
                if (SX == 7)
                Console.WriteLine("FIRE");
                else
                Console.WriteLine("HOLD");
            }
            if (SY == 5)
            {
                if (SX == 0)
                Console.WriteLine("FIRE");
                else
                Console.WriteLine("HOLD");
            }
            if (SY == 4)
            {
                if (SX == 2)
                Console.WriteLine("FIRE");
                else
                Console.WriteLine("HOLD");
            }
            if (SY == 3)
            {
                if (SX == 6)
                Console.WriteLine("FIRE");
                else
                Console.WriteLine("HOLD");
            }
            if (SY == 2)
            {
                if (SX == 4)
                Console.WriteLine("FIRE");
                else
                Console.WriteLine("HOLD");
            }
            if (SY == 1)
            {
                if (SX == 1)
                Console.WriteLine("FIRE");
                else
                Console.WriteLine("HOLD");
            }
            if (SY == 0)
            {
                if (SX == 5)
                Console.WriteLine("FIRE");
                else
                Console.WriteLine("HOLD");
            }