(11, 19) (11, 19) True
(11, 19) (11, 13) True
(11, 19) (15, 18) True
(11, 19) (9, 18) True
(11, 19) (13, 14) True
(11, 13) (11, 19) True
(11, 13) (11, 13) True
(11, 13) (15, 18) False
(11, 13) (9, 18) True
(11, 13) (13, 14) True
(15, 18) (11, 19) True
(15, 18) (11, 13) False
(15, 18) (15, 18) True
(15, 18) (9, 18) True
(15, 18) (13, 14) False
(9, 18) (11, 19) True
(9, 18) (11, 13) True
(9, 18) (15, 18) True
(9, 18) (9, 18) True
(9, 18) (13, 14) True
(13, 14) (11, 19) True
(13, 14) (11, 13) True
(13, 14) (15, 18) False
(13, 14) (9, 18) True
(13, 14) (13, 14) True
5