next(1,2). next(2,3). next(3,4). next(4,5). next(5,6). next(6,7). next(7,8). next(8,9). next(9,10). next(10,11). next(11,12). next(12,13). next(13,14). next(14,15). next(15,16). next(16,17). next(17,18). next(18,19). next(19,20). next(20,21). next(21,22). next(22,23). next(23,24). next(24,25). next(25,26). next(26,27). next(27,28). next(28,29). next(22,30). next(30,31). next(31,32). next(32,33). next(33,34). next(34,35). next(35,36). next(36,37). next(16,38). next(38,39). next(39,40). next(40,41). next(41,42). next(42,43). next(43,44). next(44,45). next(45,46). next(46,47). next(47,48). next(48,49). next(49,50). next(50,51). next(44,52). next(52,53). next(53,54). next(54,55). next(55,56). next(56,57). next(57,58). next(58,59). next(38,60). next(60,61). next(61,62). next(62,63). next(63,64). next(64,65). next(65,66). next(66,67). next(67,68). next(68,69). next(69,70). next(70,71). next(71,72). next(72,73). next(73,74). next(74,75). next(75,76). next(69,77). next(77,78). next(78,79). next(79,80). next(80,81). next(81,82). next(82,83). next(83,84). doAt(startflow,8). doAt(a5,10). doAt(a8,14). doAt(a13,15). doAt(a12,16). doAt(a25,17). doAt(a4,18). doAt(a3,19). doAt(a1,20). doAt(a16,21). doAt(a20,22). doAt(a9,23). doAt(a2,24). doAt(a7,25). doAt(a15,26). doAt(a22,27). doAt(endflow,28). doAt(a10,30). doAt(a14,31). doAt(a2,32). doAt(a7,33). doAt(a15,34). doAt(a22,35). doAt(endflow,36). doAt(a21,38). doAt(a23,39). doAt(a4,40). doAt(a3,41). doAt(a1,42). doAt(a16,43). doAt(a20,44). doAt(a9,45). doAt(a2,46). doAt(a7,47). doAt(a15,48). doAt(a22,49). doAt(endflow,50). doAt(a10,52). doAt(a14,53). doAt(a2,54). doAt(a7,55). doAt(a15,56). doAt(a22,57). doAt(endflow,58). doAt(a17,60). doAt(a18,61). doAt(a11,62). doAt(a6,63). doAt(a24,64). doAt(a4,65). doAt(a3,66). doAt(a1,67). doAt(a16,68). doAt(a20,69). doAt(a9,70). doAt(a2,71). doAt(a7,72). doAt(a15,73). doAt(a22,74). doAt(endflow,75). doAt(a10,77). doAt(a14,78). doAt(a2,79). doAt(a7,80). doAt(a15,81). doAt(a22,82). doAt(endflow,83). compAt(a13,x4,9). compAt(a8,x25,11). compAt(a25,x7,12). compAt(a4,x14,13). leftrightnexts(23,30). leftrightnexts(45,52). leftrightnexts(70,77). leftrightnexts(39,60). leftrightnexts(17,38).