(1, 1)
(2, 2)
(3, 3)
(4, 4)
(5, 5)
(6, 6)
(7, 7)
(8, 8)
(9, 9)
(10, 10)
(11, 11)
(12, 12)
(13, 13)
(14, 14)
(15, 15)
(16, 16)
(17, 17)
(18, 18)
(43, 41)
(44, 42)
(45, 43)
(46, 44)
(80, 79)
(81, 80)
(82, 81)
(83, 82)
(94, 93)
(95, 94)
(96, 95)
(97, 96)
(98, 97)
(99, 98)
(100, 99)
(102, 101)
(103, 102)
(104, 103)
(105, 104)
(106, 105)
(107, 106)
(109, 108)
(110, 109)
(111, 110)
(112, 111)
(114, 113)
(115, 114)
(116, 115)
(146, 146)
(147, 147)
(148, 148)
(149, 149)
(150, 150)
(151, 151)
(220, 213)
(221, 214)
(222, 215)
(223, 216)
(224, 217)
(225, 218)
(226, 219)
(250, 243)
(251, 244)
(252, 245)
(253, 246)
(254, 247)
(255, 248)
(256, 249)
(257, 250)
(258, 251)
(259, 252)
(260, 253)
(261, 254)
(262, 255)
(263, 256)
(264, 257)
(277, 269)
(288, 279)
(289, 280)
(290, 281)
(326, 319)
(327, 320)
(328, 321)
(329, 322)
(330, 323)
(331, 324)
(332, 325)
(333, 326)
(334, 327)
(335, 328)
(336, 329)
(337, 330)
(338, 331)
(339, 332)
(340, 333)
(341, 334)
(342, 335)
(343, 336)
(344, 337)
(345, 338)
(473, 459)
(474, 460)
(475, 461)
(476, 462)
(477, 463)
(478, 464)
(479, 465)
(480, 466)
(481, 467)
(482, 468)
(483, 469)
(484, 470)