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(9,14). next(14,15). next(15,16). next(16,17). next(17,18). next(18,19). next(19,20). next(20,21). next(17,22). next(22,23). next(23,24). next(24,25). next(25,26). next(26,27). next(23,28). next(28,29). next(29,30). next(30,31). next(4,32). next(32,33). next(33,34). next(34,35). next(35,36). next(36,37). next(37,38). next(38,39). next(39,40). next(36,41). next(41,42). next(42,43). next(43,44). next(44,45). next(45,46). next(46,47). next(47,48). next(44,49). next(49,50). next(50,51). next(51,52). next(52,53). next(53,54). next(50,55). next(55,56). next(56,57). next(57,58). next(32,59). next(59,60). 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(66,71). next(71,72). next(72,73). next(73,74). next(74,75). next(75,76). next(76,77). next(77,78). next(74,79). next(79,80). next(80,81). next(81,82). next(82,83). next(83,84). next(80,85). next(85,86). next(86,87). next(87,88). doAt(startflow,3). doAt(a23,4). doAt(a8,5). doAt(a2,6). doAt(a25,7). doAt(a9,8). doAt(a20,9). doAt(a21,10). doAt(a5,11). doAt(endflow,12). doAt(a17,14). doAt(a22,15). doAt(a6,16). doAt(a13,17). doAt(a4,18). doAt(a5,19). doAt(endflow,20). doAt(a15,22). doAt(a3,23). doAt(a7,24). doAt(a5,25). doAt(endflow,26). doAt(a18,28). doAt(a5,29). doAt(endflow,30). doAt(a16,32). doAt(a24,33). doAt(a25,34). doAt(a9,35). doAt(a20,36). doAt(a21,37). doAt(a5,38). doAt(endflow,39). doAt(a17,41). doAt(a22,42). doAt(a6,43). doAt(a13,44). doAt(a4,45). doAt(a5,46). doAt(endflow,47). doAt(a15,49). doAt(a3,50). doAt(a7,51). doAt(a5,52). doAt(endflow,53). doAt(a18,55). doAt(a5,56). doAt(endflow,57). doAt(a1,59). doAt(a14,60). doAt(a19,61). doAt(a11,62). doAt(a10,63). doAt(a25,64). doAt(a9,65). doAt(a20,66). doAt(a21,67). doAt(a5,68). doAt(endflow,69). doAt(a17,71). doAt(a22,72). doAt(a6,73). doAt(a13,74). doAt(a4,75). doAt(a5,76). doAt(endflow,77). doAt(a15,79). doAt(a3,80). doAt(a7,81). doAt(a5,82). doAt(endflow,83). doAt(a18,85). doAt(a5,86). doAt(endflow,87). leftrightnexts(24,28). leftrightnexts(18,22). leftrightnexts(10,14). leftrightnexts(51,55). leftrightnexts(45,49). leftrightnexts(37,41). leftrightnexts(81,85). leftrightnexts(75,79). leftrightnexts(67,71). leftrightnexts(33,59). leftrightnexts(5,32).