(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)
(19, 19)
(20, 20)
(280, 287)
(281, 288)
(282, 289)
(283, 290)
(284, 291)
(285, 292)
(286, 293)
(287, 294)
(288, 295)
(289, 296)
(290, 297)
(291, 298)
(292, 299)
(293, 300)
(294, 301)
(295, 302)
(296, 303)
(297, 304)
(298, 305)
(299, 306)
(300, 307)
(303, 310)
(304, 311)
(305, 312)
(306, 313)
(307, 314)
(308, 315)
(309, 316)
(310, 317)
(311, 318)
(312, 319)
(313, 320)
(314, 321)
(315, 322)
(316, 323)
(317, 324)
(318, 325)
(319, 326)
(320, 327)
(321, 328)
(322, 329)
(323, 330)
(324, 331)
(325, 332)
(326, 333)
(327, 334)
(328, 335)
(329, 336)
(330, 337)
(331, 338)
(332, 339)
(333, 340)
(334, 341)
(335, 342)
(336, 343)
(337, 344)
(338, 345)
(339, 346)
(340, 347)
(341, 348)
(342, 349)
(343, 350)
(344, 351)
(345, 352)
(346, 353)
(347, 354)
(348, 355)
(349, 356)
(350, 357)
(364, 371)
(365, 372)
(366, 373)
(367, 374)
(368, 375)
(369, 376)
(370, 377)
(371, 378)
(372, 379)
(373, 380)
(374, 381)
(375, 382)
(376, 383)
(377, 384)
(378, 385)
(379, 386)
(380, 387)
(381, 388)
(382, 389)
(383, 390)
(384, 391)
(385, 392)
(386, 393)
(387, 394)
(388, 395)
(389, 396)
(390, 397)
(391, 398)
(392, 399)
(393, 400)
(394, 401)
(395, 402)
(396, 403)
(397, 404)
(398, 405)
(399, 406)
(400, 407)
(401, 408)
(402, 409)
(403, 410)
(404, 411)
(405, 412)
(406, 413)
(407, 414)
(408, 415)
(409, 416)
(410, 417)
(411, 418)
(412, 419)
(413, 420)
(414, 421)
(415, 422)
(416, 423)
(417, 424)
(418, 425)
(419, 426)
(420, 427)
(421, 428)
(422, 429)
(423, 430)
(424, 431)
(425, 432)
(426, 433)
(427, 434)
(428, 435)
(429, 436)
(430, 437)
(431, 438)
(432, 439)
(433, 440)
(434, 441)
(435, 442)
(436, 443)
(437, 444)
(438, 445)
(439, 446)
(440, 447)
(441, 448)
(442, 449)
(443, 450)
(444, 451)
(445, 452)
(446, 453)
(447, 454)
(448, 455)
(449, 456)
(450, 457)
(451, 458)
(452, 459)
(453, 460)
(454, 461)
(455, 462)
(456, 463)
(457, 464)
(458, 465)
(488, 497)
(489, 498)
(490, 499)
(491, 500)
(492, 501)
(493, 502)
(494, 503)
(495, 504)
(496, 505)
(497, 506)
(498, 507)
(499, 508)
(500, 509)
(501, 510)
(502, 511)
(503, 512)
(504, 513)
(505, 514)
(506, 515)
(507, 516)
(508, 517)
(509, 518)
(526, 535)
(527, 536)
(528, 537)
(529, 538)
(530, 539)
(531, 540)
(532, 541)
(533, 542)
(534, 543)
(535, 544)
(536, 545)
(537, 546)
(538, 547)
(539, 548)
(540, 549)
(541, 550)
(542, 551)
(544, 553)
(545, 554)
(546, 555)
(547, 556)
(548, 557)
(549, 558)
(550, 559)
(551, 560)
(552, 561)
(553, 562)
(554, 563)
(555, 564)
(556, 565)
(557, 566)
(558, 567)
(559, 568)
(560, 569)
(561, 570)
(562, 571)
(563, 572)
(564, 573)
(565, 574)
(566, 575)
(567, 576)
(568, 577)
(569, 578)
(570, 579)
(571, 580)
(572, 581)
(573, 582)
(574, 583)
(575, 584)
(576, 585)
(577, 586)
(578, 587)
(579, 588)
(580, 589)
(581, 590)
(582, 591)
(583, 592)
(584, 593)
(585, 594)
(586, 595)
(587, 596)
(588, 597)
(589, 598)
(590, 599)
(591, 600)
(592, 601)
(593, 602)
(594, 603)
(595, 604)
(596, 605)
(597, 606)
(598, 607)
(599, 608)
(600, 609)
(601, 610)
(602, 611)
(603, 612)
(604, 613)
(605, 614)
(606, 615)
(607, 616)
(608, 617)
(609, 618)
(610, 619)
(611, 620)
(612, 621)
(613, 622)
(614, 623)
(615, 624)
(616, 625)
(617, 626)
(618, 627)
(619, 628)
(620, 629)
(621, 630)
(622, 631)
(623, 632)
(624, 633)
(625, 634)
(626, 635)
(627, 636)
(628, 637)
(629, 638)
(630, 639)
(631, 640)
(632, 641)
(633, 642)
(634, 643)
(635, 644)
(636, 645)
(637, 646)
(638, 647)
(639, 648)
(640, 649)
(641, 650)
(642, 651)
(645, 654)
(646, 655)
(647, 656)
(648, 657)
(649, 658)
(650, 659)
(651, 660)
(655, 664)
(656, 665)
(657, 666)
(658, 667)
(659, 668)
(660, 669)
(661, 670)
(662, 671)
(663, 672)
(664, 673)
(665, 674)
(685, 694)
(686, 695)
(687, 696)
(688, 697)
(689, 698)
(690, 699)
(691, 700)
(692, 701)
(693, 702)
(694, 703)
(695, 704)
(696, 705)
(697, 706)
(698, 707)
(699, 708)
(700, 709)