[(8, 7), (13, 2), (14, 2), (9, 7), (17, 7), (17, 10), (12, 10), (15, 13), (17, 13), (17, 16), (15, 16), (12, 13), (12, 22), (17, 22), (17, 25), (12, 25), (15, 28), (17, 28), (17, 31), (15, 31), (12, 28), (8, 32), (10, 34), (10, 37), (8, 39), (3, 34), (5, 32), (3, 30)]
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