(3, 13) (3, 13) True
(3, 13) (2, 12) True
(3, 13) (12, 16) True
(3, 13) (17, 19) False
(3, 13) (6, 10) True
(2, 12) (3, 13) True
(2, 12) (2, 12) True
(2, 12) (12, 16) True
(2, 12) (17, 19) False
(2, 12) (6, 10) True
(12, 16) (3, 13) True
(12, 16) (2, 12) True
(12, 16) (12, 16) True
(12, 16) (17, 19) False
(12, 16) (6, 10) False
(17, 19) (3, 13) False
(17, 19) (2, 12) False
(17, 19) (12, 16) False
(17, 19) (17, 19) True
(17, 19) (6, 10) False
(6, 10) (3, 13) True
(6, 10) (2, 12) True
(6, 10) (12, 16) False
(6, 10) (17, 19) False
(6, 10) (6, 10) True
4