YES Problem: 0(1(2(x1))) -> 0(2(1(1(x1)))) 0(3(2(x1))) -> 0(2(1(3(x1)))) 0(3(2(x1))) -> 0(2(1(1(3(x1))))) 0(1(2(4(x1)))) -> 0(2(4(1(1(x1))))) 0(3(2(4(x1)))) -> 0(1(4(3(2(x1))))) 0(3(4(2(x1)))) -> 0(4(2(1(3(x1))))) 0(3(4(4(x1)))) -> 0(1(4(4(3(1(x1)))))) 1(2(0(3(x1)))) -> 3(1(0(2(1(x1))))) 3(0(3(2(x1)))) -> 3(0(2(3(1(x1))))) 0(1(2(0(3(x1))))) -> 0(2(1(3(1(0(x1)))))) 0(1(2(2(2(x1))))) -> 0(2(1(2(1(2(x1)))))) 0(1(2(5(1(x1))))) -> 0(2(1(1(0(5(x1)))))) 0(3(2(4(4(x1))))) -> 4(0(4(2(1(3(x1)))))) 0(3(2(5(3(x1))))) -> 5(1(3(0(2(3(x1)))))) 2(2(0(3(5(x1))))) -> 2(5(0(2(1(3(x1)))))) 2(4(0(3(2(x1))))) -> 2(4(3(0(0(2(x1)))))) 3(0(3(4(2(x1))))) -> 1(3(4(0(2(3(x1)))))) 4(2(5(0(3(x1))))) -> 5(4(3(0(2(1(x1)))))) 4(5(0(3(2(x1))))) -> 4(5(0(2(3(1(x1)))))) 4(5(0(3(3(x1))))) -> 0(5(4(1(3(3(x1)))))) 5(0(3(1(2(x1))))) -> 0(5(2(1(1(3(x1)))))) 5(1(2(0(3(x1))))) -> 1(0(2(1(3(5(x1)))))) 5(2(0(1(2(x1))))) -> 0(2(1(5(0(2(x1)))))) 0(1(1(4(4(2(x1)))))) -> 4(1(1(1(0(4(2(x1))))))) 0(1(5(3(0(2(x1)))))) -> 0(2(0(5(1(1(3(x1))))))) 0(3(0(5(4(2(x1)))))) -> 4(1(0(2(3(0(5(x1))))))) 0(3(1(4(3(2(x1)))))) -> 1(0(2(1(4(3(3(x1))))))) 0(3(2(0(3(4(x1)))))) -> 1(0(2(3(3(0(4(x1))))))) 0(3(2(2(4(5(x1)))))) -> 0(2(5(4(1(2(3(x1))))))) 0(3(2(3(4(1(x1)))))) -> 4(1(1(3(0(2(1(3(x1)))))))) 0(3(2(4(1(4(x1)))))) -> 4(1(3(0(2(4(1(x1))))))) 0(3(2(5(5(1(x1)))))) -> 0(2(1(1(3(5(5(1(x1)))))))) 4(2(2(0(3(2(x1)))))) -> 2(2(0(2(4(1(1(3(x1)))))))) 5(4(0(3(1(2(x1)))))) -> 0(1(4(5(2(1(3(x1))))))) 5(4(0(3(2(4(x1)))))) -> 4(2(0(5(4(1(1(3(x1)))))))) 0(1(2(4(3(5(4(x1))))))) -> 0(2(4(5(4(1(1(3(x1)))))))) 0(1(2(5(3(5(4(x1))))))) -> 5(1(4(3(1(2(0(5(x1)))))))) 0(3(1(4(4(2(4(x1))))))) -> 4(1(2(1(0(4(3(4(x1)))))))) 0(3(2(0(0(3(2(x1))))))) -> 0(0(2(3(0(2(3(1(x1)))))))) 0(5(3(3(2(1(5(x1))))))) -> 0(2(1(3(1(3(5(5(x1)))))))) 2(3(0(3(0(1(2(x1))))))) -> 3(0(2(1(1(0(2(3(x1)))))))) 2(4(1(0(3(0(2(x1))))))) -> 2(0(2(1(3(1(0(4(x1)))))))) 2(5(0(0(4(4(2(x1))))))) -> 2(0(4(1(0(4(5(2(x1)))))))) 3(3(4(1(0(3(2(x1))))))) -> 3(3(4(1(1(3(0(2(x1)))))))) 4(2(1(0(3(5(5(x1))))))) -> 5(0(1(4(3(1(2(5(x1)))))))) 4(3(0(3(2(5(3(x1))))))) -> 0(2(1(3(1(3(4(5(3(x1))))))))) 4(3(4(5(2(1(2(x1))))))) -> 5(2(2(4(4(1(1(3(x1)))))))) 4(4(2(5(3(1(1(x1))))))) -> 5(4(3(4(1(2(1(1(x1)))))))) 5(3(5(0(1(2(4(x1))))))) -> 4(5(0(2(1(3(1(5(x1)))))))) 0(1(1(2(5(0(3(1(x1)))))))) -> 0(5(1(1(0(2(1(1(3(x1))))))))) 0(3(0(3(4(2(5(2(x1)))))))) -> 0(1(2(4(3(5(0(2(3(x1))))))))) 0(3(4(4(4(0(4(5(x1)))))))) -> 4(3(0(1(4(4(0(4(5(x1))))))))) 2(2(0(3(1(5(3(1(x1)))))))) -> 2(3(0(2(1(1(3(5(1(x1))))))))) 2(2(4(2(3(3(1(5(x1)))))))) -> 2(2(1(3(4(3(2(1(5(x1))))))))) 3(0(0(1(4(2(4(2(x1)))))))) -> 3(2(1(4(0(2(0(4(1(x1))))))))) 3(1(0(3(1(2(1(2(x1)))))))) -> 3(1(3(1(1(0(0(2(2(x1))))))))) 3(2(3(0(3(2(3(2(x1)))))))) -> 3(3(2(1(3(2(3(0(2(x1))))))))) 4(2(3(1(0(0(5(2(x1)))))))) -> 2(0(0(2(1(1(5(4(3(x1))))))))) 4(5(0(0(3(3(0(2(x1)))))))) -> 1(4(3(0(5(3(0(0(2(x1))))))))) 5(0(3(4(2(1(1(4(x1)))))))) -> 5(4(0(0(2(3(1(1(4(x1))))))))) 5(2(0(1(5(1(2(3(x1)))))))) -> 0(2(2(3(1(1(1(5(5(x1))))))))) 0(1(4(2(2(5(5(5(2(x1))))))))) -> 0(2(5(0(2(5(4(1(5(2(x1)))))))))) 0(2(1(4(2(2(0(3(1(x1))))))))) -> 0(2(3(4(1(2(0(0(2(1(x1)))))))))) 0(3(2(0(3(4(3(1(3(x1))))))))) -> 1(3(0(1(4(3(1(3(3(0(2(x1))))))))))) 0(3(5(1(2(2(0(1(3(x1))))))))) -> 0(4(2(0(2(1(1(3(5(3(x1)))))))))) 0(4(0(3(2(5(0(5(2(x1))))))))) -> 0(4(0(0(2(5(5(1(3(2(x1)))))))))) 1(4(2(4(0(0(0(3(4(x1))))))))) -> 4(0(2(1(4(3(0(0(4(1(x1)))))))))) 2(1(4(0(3(2(4(1(5(x1))))))))) -> 2(1(1(3(0(2(5(4(0(4(x1)))))))))) 3(0(0(1(2(0(3(2(5(x1))))))))) -> 0(2(2(0(5(1(0(1(3(3(x1)))))))))) 3(0(1(3(5(1(4(5(4(x1))))))))) -> 1(1(0(4(5(5(1(3(3(4(x1)))))))))) 4(2(1(5(3(0(1(2(2(x1))))))))) -> 2(5(0(2(1(4(3(2(1(1(x1)))))))))) 5(1(2(2(0(3(5(1(2(x1))))))))) -> 1(0(2(1(3(2(5(5(2(1(1(x1))))))))))) 0(1(3(4(2(5(0(3(5(1(x1)))))))))) -> 5(2(3(1(4(3(0(5(0(0(1(x1))))))))))) 0(3(4(2(3(2(2(3(2(4(x1)))))))))) -> 4(3(2(2(3(0(2(1(3(2(4(x1))))))))))) 0(3(5(4(1(4(3(5(3(4(x1)))))))))) -> 0(5(4(3(3(1(5(4(4(3(1(x1))))))))))) 0(4(3(3(4(0(3(2(5(4(x1)))))))))) -> 0(1(4(4(3(2(3(3(4(5(0(x1))))))))))) 1(0(3(2(5(2(5(4(1(2(x1)))))))))) -> 1(5(2(0(2(1(4(5(0(2(3(x1))))))))))) 1(4(5(1(4(2(5(1(3(1(x1)))))))))) -> 5(5(1(4(3(1(4(1(1(2(1(x1))))))))))) 1(5(2(0(3(4(2(2(5(5(x1)))))))))) -> 1(5(2(5(0(2(2(5(1(4(3(x1))))))))))) 2(0(1(2(5(0(3(2(1(1(x1)))))))))) -> 2(5(4(1(1(1(3(0(2(0(2(x1))))))))))) 2(4(0(1(5(3(0(0(3(3(x1)))))))))) -> 3(0(3(0(5(4(0(2(1(1(3(x1))))))))))) 2(4(2(0(1(0(3(4(4(3(x1)))))))))) -> 2(1(0(0(1(4(3(2(4(4(3(x1))))))))))) 4(2(0(3(1(1(5(0(3(1(x1)))))))))) -> 1(3(0(1(5(0(2(3(1(1(4(x1))))))))))) 4(4(2(5(0(5(5(0(0(3(x1)))))))))) -> 0(2(5(4(3(1(4(0(5(5(0(x1))))))))))) 4(5(0(4(0(0(5(2(0(3(x1)))))))))) -> 5(1(5(4(0(0(2(3(0(4(0(x1))))))))))) 5(5(0(1(0(0(3(2(2(4(x1)))))))))) -> 0(0(2(0(5(2(5(4(1(1(3(x1))))))))))) Proof: Bounds Processor: bound: 1 enrichment: match automaton: final states: {507,497,488,483,474,468,459,450,441,434,424,417,407, 397,389,382,374,367,359,352,344,336,328,321,313,306, 298,293,285,279,271,264,257,250,242,236,232,225,220, 216,208,201,195,188,182,177,170,167,160,154,151,147, 143,138,131,125,121,116,109,104,99,95,89,85,80,78,73, 71,68,65,60,58,53,52,46,41,35,32,28,23,21,16,13,10, 6,1} transitions: 40(421) -> 422* 40(324) -> 325* 40(221) -> 222* 40(477) -> 478* 40(2) -> 110* 40(245) -> 246* 40(55) -> 66* 40(75) -> 76* 40(204) -> 205* 40(231) -> 225* 40(111) -> 360* 40(259) -> 260* 40(130) -> 125* 40(331) -> 332* 40(24) -> 25* 40(425) -> 426* 40(503) -> 504* 40(144) -> 145* 40(18) -> 19* 40(150) -> 147* 40(354) -> 355* 40(74) -> 105* 40(3) -> 126* 40(189) -> 190* 40(443) -> 444* 40(416) -> 407* 40(103) -> 99* 40(267) -> 268* 40(314) -> 315* 40(446) -> 447* 40(350) -> 351* 40(72) -> 71* 40(249) -> 242* 40(383) -> 384* 40(9) -> 22* 40(209) -> 210* 40(139) -> 217* 40(161) -> 162* 40(166) -> 160* 40(10) -> 469* 40(148) -> 152* 40(402) -> 403* 40(431) -> 432* 40(7) -> 286* 40(4) -> 14* 40(198) -> 199* 40(157) -> 158* 40(36) -> 498* 40(304) -> 305* 40(465) -> 466* 40(11) -> 139* 40(124) -> 121* 40(69) -> 70* 40(378) -> 379* 40(117) -> 118* 40(358) -> 352* 40(94) -> 89* 40(493) -> 494* 40(63) -> 64* 40(237) -> 435* 40(430) -> 431* 40(342) -> 343* 40(192) -> 193* 40(223) -> 224* 40(244) -> 245* 40(47) -> 243* 40(490) -> 491* 40(296) -> 297* 40(21) -> 52* 40(17) -> 90* 40(238) -> 239* 40(25) -> 26* 40(286) -> 475* 41(525) -> 526* 21(520) -> 521* 00(153) -> 151* 00(168) -> 169* 00(47) -> 48* 00(265) -> 353* 00(479) -> 480* 00(273) -> 274* 00(496) -> 488* 00(169) -> 167* 00(193) -> 194* 00(148) -> 149* 00(88) -> 85* 00(386) -> 387* 00(370) -> 371* 00(400) -> 401* 00(77) -> 73* 00(327) -> 321* 00(5) -> 1* 00(190) -> 191* 00(502) -> 503* 00(266) -> 267* 00(343) -> 336* 00(349) -> 350* 00(162) -> 163* 00(511) -> 512* 00(243) -> 244* 00(357) -> 358* 00(454) -> 455* 00(229) -> 230* 00(186) -> 187* 00(12) -> 10* 00(437) -> 438* 00(509) -> 510* 00(126) -> 265* 00(40) -> 35* 00(120) -> 116* 00(333) -> 334* 00(20) -> 16* 00(75) -> 368* 00(127) -> 128* 00(22) -> 21* 00(45) -> 41* 00(302) -> 303* 00(101) -> 102* 00(340) -> 341* 00(27) -> 23* 00(180) -> 181* 00(15) -> 13* 00(290) -> 291* 00(33) -> 34* 00(312) -> 306* 00(137) -> 131* 00(29) -> 30* 00(241) -> 236* 00(379) -> 380* 00(140) -> 141* 00(320) -> 313* 00(512) -> 507* 00(470) -> 471* 00(83) -> 84* 00(176) -> 170* 00(17) -> 61* 00(3) -> 398* 00(206) -> 207* 00(272) -> 273* 00(96) -> 97* 00(254) -> 255* 00(433) -> 424* 00(61) -> 62* 00(423) -> 417* 00(373) -> 367* 00(107) -> 108* 00(291) -> 292* 00(247) -> 248* 00(294) -> 295* 00(235) -> 232* 00(215) -> 208* 00(348) -> 349* 00(498) -> 499* 00(303) -> 304* 00(411) -> 412* 00(30) -> 322* 00(79) -> 78* 00(98) -> 95* 00(110) -> 111* 00(489) -> 490* 00(54) -> 55* 00(460) -> 461* 00(146) -> 143* 00(398) -> 399* 00(351) -> 344* 00(90) -> 91* 00(9) -> 6* 00(362) -> 363* 00(472) -> 473* 00(395) -> 396* 00(480) -> 481* 00(501) -> 502* 00(114) -> 115* 00(317) -> 318* 00(51) -> 46* 00(485) -> 486* 00(2) -> 36* 30(7) -> 74* 30(5) -> 383* 30(30) -> 69* 30(196) -> 329* 30(419) -> 420* 30(415) -> 416* 30(278) -> 271* 30(171) -> 172* 30(408) -> 409* 30(248) -> 249* 30(404) -> 405* 30(3) -> 24* 30(237) -> 238* 30(226) -> 227* 30(330) -> 331* 30(476) -> 477* 30(473) -> 468* 30(66) -> 67* 30(363) -> 364* 30(62) -> 63* 30(461) -> 462* 30(156) -> 157* 30(300) -> 301* 30(276) -> 277* 30(17) -> 18* 30(200) -> 195* 30(212) -> 213* 30(499) -> 500* 30(128) -> 129* 30(183) -> 184* 30(181) -> 177* 30(412) -> 413* 30(210) -> 211* 30(199) -> 200* 30(334) -> 335* 30(270) -> 264* 30(55) -> 56* 30(203) -> 204* 30(61) -> 196* 30(492) -> 493* 30(258) -> 259* 30(471) -> 472* 30(260) -> 261* 30(47) -> 81* 30(426) -> 427* 30(325) -> 326* 30(280) -> 281* 30(427) -> 428* 30(222) -> 223* 30(283) -> 284* 30(173) -> 174* 30(112) -> 113* 30(34) -> 32* 30(353) -> 354* 30(309) -> 310* 30(37) -> 38* 30(133) -> 134* 30(209) -> 337* 30(420) -> 421* 30(48) -> 100* 30(110) -> 161* 30(429) -> 430* 30(445) -> 446* 30(401) -> 402* 30(392) -> 393* 30(295) -> 296* 30(6) -> 122* 30(161) -> 375* 30(486) -> 487* 30(31) -> 28* 30(132) -> 251* 30(255) -> 256* 30(2) -> 7* 30(284) -> 279* 30(111) -> 112* 01(521) -> 522* 10(38) -> 39* 10(297) -> 293* 10(393) -> 394* 10(54) -> 117* 10(308) -> 309* 10(505) -> 506* 10(172) -> 173* 10(329) -> 330* 10(17) -> 42* 10(277) -> 278* 10(375) -> 376* 10(213) -> 214* 10(178) -> 179* 10(246) -> 247* 10(2) -> 3* 10(122) -> 123* 10(47) -> 226* 10(163) -> 164* 10(43) -> 44* 10(36) -> 37* 10(403) -> 404* 10(202) -> 203* 10(191) -> 192* 10(5) -> 221* 10(261) -> 262* 10(338) -> 339* 10(10) -> 233* 10(81) -> 82* 10(281) -> 282* 10(435) -> 436* 10(196) -> 197* 10(205) -> 206* 10(55) -> 178* 10(233) -> 234* 10(171) -> 307* 10(102) -> 103* 10(444) -> 445* 10(418) -> 419* 10(368) -> 369* 10(299) -> 300* 10(396) -> 389* 10(110) -> 299* 10(84) -> 80* 10(274) -> 275* 10(145) -> 146* 10(287) -> 288* 10(442) -> 443* 10(432) -> 433* 10(384) -> 385* 10(332) -> 333* 10(18) -> 345* 10(56) -> 57* 10(463) -> 464* 10(381) -> 374* 10(155) -> 156* 10(458) -> 450* 10(108) -> 104* 10(288) -> 289* 10(111) -> 183* 10(29) -> 442* 10(197) -> 198* 10(462) -> 463* 10(409) -> 410* 10(165) -> 166* 10(134) -> 135* 10(286) -> 451* 10(491) -> 492* 10(464) -> 465* 10(135) -> 136* 10(481) -> 482* 10(8) -> 11* 10(268) -> 269* 10(323) -> 324* 10(93) -> 94* 10(26) -> 27* 10(275) -> 276* 10(184) -> 185* 10(123) -> 124* 10(48) -> 49* 10(337) -> 338* 10(91) -> 92* 10(307) -> 308* 10(364) -> 365* 10(365) -> 366* 10(129) -> 130* 10(240) -> 241* 10(335) -> 328* 10(86) -> 87* 10(7) -> 8* 10(487) -> 483* 10(478) -> 479* 10(251) -> 252* 10(3) -> 4* 10(174) -> 175* 10(105) -> 106* 10(252) -> 253* 10(158) -> 159* 10(227) -> 228* 10(49) -> 50* 10(484) -> 485* 10(30) -> 31* 10(380) -> 381* 10(92) -> 93* 10(447) -> 448* 10(19) -> 20* 10(67) -> 65* 10(115) -> 109* 10(440) -> 434* 10(74) -> 75* 10(355) -> 356* 10(211) -> 212* 10(189) -> 314* 20(39) -> 40* 20(44) -> 45* 20(24) -> 33* 20(214) -> 215* 20(4) -> 5* 20(141) -> 142* 20(256) -> 250* 20(269) -> 270* 20(2) -> 17* 20(17) -> 272* 20(119) -> 120* 20(413) -> 414* 20(48) -> 155* 20(456) -> 457* 20(438) -> 439* 20(410) -> 411* 20(253) -> 254* 20(453) -> 454* 20(61) -> 460* 20(50) -> 51* 20(467) -> 459* 20(388) -> 382* 20(196) -> 280* 20(311) -> 312* 20(113) -> 114* 20(64) -> 60* 20(385) -> 386* 20(391) -> 392* 20(164) -> 165* 20(97) -> 98* 20(139) -> 140* 20(175) -> 176* 20(495) -> 496* 20(47) -> 202* 20(3) -> 29* 20(82) -> 83* 20(87) -> 88* 20(436) -> 437* 20(282) -> 283* 20(371) -> 372* 20(510) -> 511* 20(263) -> 257* 20(185) -> 186* 20(361) -> 362* 20(228) -> 229* 20(414) -> 415* 20(194) -> 188* 20(149) -> 150* 20(152) -> 153* 20(110) -> 408* 20(187) -> 182* 20(475) -> 476* 20(341) -> 342* 20(347) -> 348* 20(500) -> 501* 20(265) -> 266* 20(32) -> 168* 20(428) -> 429* 20(11) -> 12* 20(482) -> 474* 20(356) -> 357* 20(262) -> 263* 20(179) -> 180* 20(8) -> 9* 20(136) -> 137* 20(217) -> 218* 20(310) -> 311* 20(372) -> 373* 20(7) -> 54* 20(394) -> 395* 20(322) -> 323* 20(292) -> 285* 20(142) -> 138* 20(59) -> 58* 20(289) -> 290* 20(14) -> 15* 20(42) -> 43* 20(316) -> 317* 20(218) -> 219* 20(366) -> 359* 20(301) -> 302* 20(239) -> 240* 20(100) -> 101* 20(148) -> 508* 20(126) -> 127* 20(319) -> 320* 20(452) -> 453* 20(106) -> 107* 20(339) -> 340* 20(226) -> 258* 20(326) -> 327* 20(405) -> 406* 11(518) -> 519* 11(519) -> 520* 11(524) -> 525* 11(523) -> 524* 50(159) -> 154* 50(57) -> 53* 50(377) -> 378* 50(457) -> 458* 50(451) -> 452* 50(219) -> 216* 50(315) -> 316* 50(207) -> 201* 50(17) -> 189* 50(234) -> 235* 50(47) -> 171* 50(439) -> 440* 50(455) -> 456* 50(346) -> 347* 50(406) -> 397* 50(508) -> 509* 50(494) -> 495* 50(469) -> 470* 50(286) -> 287* 50(399) -> 400* 50(36) -> 425* 50(425) -> 489* 50(422) -> 423* 50(26) -> 418* 50(3) -> 132* 50(2) -> 47* 50(318) -> 319* 50(390) -> 391* 50(63) -> 294* 50(387) -> 388* 50(504) -> 505* 50(76) -> 77* 50(11) -> 96* 50(6) -> 59* 50(5) -> 390* 50(369) -> 370* 50(9) -> 144* 50(360) -> 361* 50(61) -> 86* 50(466) -> 467* 50(7) -> 209* 50(345) -> 346* 50(34) -> 72* 50(139) -> 148* 50(118) -> 119* 50(448) -> 449* 50(12) -> 79* 50(55) -> 237* 50(230) -> 231* 50(305) -> 298* 50(506) -> 497* 50(449) -> 441* 50(132) -> 133* 50(376) -> 377* 50(70) -> 68* 50(303) -> 484* 50(224) -> 220* f60() -> 2* 459 -> 17* 238 -> 523* 151 -> 36,398 321 -> 36,61,30 507 -> 47,171,489 367 -> 7* 328 -> 36* 195 -> 7,74,375 474 -> 17,408 131 -> 36* 285 -> 110,90 68 -> 110,90 424 -> 36,111 242 -> 36* 154 -> 36,398 250 -> 17,272 160 -> 36* 35 -> 36,398 434 -> 3,37 46 -> 36,398 216 -> 110,286,162 182 -> 17,408,127 417 -> 36* 236 -> 36* 104 -> 36* 450 -> 3,226,314 85 -> 47,189 497 -> 110,243,426 306 -> 47,189 16 -> 36* 359 -> 17,29 188 -> 17,202 344 -> 36,111,499 232 -> 36,398 28 -> 3,42 313 -> 36,398 53 -> 36* 143 -> 47* 264 -> 7* 336 -> 36* 522 -> 236* 52 -> 36* 109 -> 36* 220 -> 110* 468 -> 17,408 116 -> 36* 6 -> 36* 121 -> 36* 389 -> 47,132 257 -> 17,272 526 -> 520* 441 -> 3,299 407 -> 36* 138 -> 110,90 21 -> 36* 177 -> 17,54 201 -> 110,90 208 -> 110,286 170 -> 36,48 58 -> 17,272 125 -> 36* 73 -> 110,243,426 488 -> 110* 60 -> 17,408 13 -> 36,398 71 -> 110,243,426 1 -> 36,398 293 -> 110,243,426 397 -> 36,398 99 -> 36* 483 -> 110,90 65 -> 7* 95 -> 36,398 147 -> 47* 298 -> 47,425 225 -> 47,209 382 -> 110,90 41 -> 36,398 167 -> 36* 352 -> 3,299 374 -> 7* 10 -> 36* 80 -> 47,132 271 -> 7,24,38 89 -> 36,398 32 -> 7* 23 -> 36* 239 -> 518* 279 -> 7,18 78 -> 47,425 problem: Qed