Pragmatic Bookshelf π(3, 4, 7), (5, -8, 9), (6, 3, 3), (6, 9, 3), (10, 4, ?)
(30, 4, 34), (22, 3, 23), (4, 9, 9), (51, 6, 56), (17, 1, ?)
(1, 3, 4), (7, 2, 21), (2, 7, 16), (3, 1, 6), (8, 5, ?)
(4, 5, 4), (1, 3, 4), (4, 8, 2), (4, -2, 2), (4, -6, ?)
(3, 2, 7), (8, 1, 9), (6, 4, 25), (1, 1, 2), (5, 0, ?)
(5, 2, 12), (1, 7, 9), (3, 3, 9), (4, 7, 15), (11, 6, ?)
(11, 6, 15), (3, 15, 13), (2, 3, 4), (-2, 9, 4), (1, -3, ?)
(1, 2, 2), (10, 2, 38), (6, 15, 9), (5, 3, 17), (?, 2, 26)
(0, 9, 1), (1, 2, 1), (1, 5, 0), (0, 0, 0), (0, 3, ?)
(7, 2, 31), (3, 2, 15), (8, 1, 19), (3, 3, 21), (1, 3, ?)