(18, 21) (18, 21) True
(18, 21) (15, 20) True
(18, 21) (11, 14) False
(18, 21) (4, 15) False
(18, 21) (12, 21) True
(15, 20) (18, 21) True
(15, 20) (15, 20) True
(15, 20) (11, 14) False
(15, 20) (4, 15) True
(15, 20) (12, 21) True
(11, 14) (18, 21) False
(11, 14) (15, 20) False
(11, 14) (11, 14) True
(11, 14) (4, 15) True
(11, 14) (12, 21) True
(4, 15) (18, 21) False
(4, 15) (15, 20) True
(4, 15) (11, 14) True
(4, 15) (4, 15) True
(4, 15) (12, 21) True
(12, 21) (18, 21) True
(12, 21) (15, 20) True
(12, 21) (11, 14) True
(12, 21) (4, 15) True
(12, 21) (12, 21) True
5