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(7,19). 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(29,30). next(30,31). next(31,32). next(32,33). next(33,34). next(24,35). next(35,36). next(36,37). next(37,38). 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(51,52). next(52,53). next(53,54). next(54,55). next(55,56). next(56,57). next(57,58). next(58,59). next(46,60). 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). doAt(startflow,5). doAt(a8,7). doAt(a26,8). doAt(a29,10). doAt(a12,11). doAt(a14,12). doAt(a9,13). doAt(a19,14). doAt(a1,15). doAt(a6,16). doAt(endflow,17). doAt(a4,19). doAt(a17,21). doAt(a23,22). doAt(a11,23). doAt(a30,24). doAt(a32,25). doAt(a14,26). doAt(a9,27). doAt(a19,28). doAt(a1,30). doAt(a6,31). doAt(endflow,33). doAt(a22,35). doAt(a10,36). doAt(a28,37). doAt(a2,38). doAt(a24,39). doAt(a25,40). doAt(a20,42). doAt(a15,43). doAt(a34,44). doAt(a31,45). doAt(a5,46). doAt(a35,47). doAt(a16,48). doAt(a7,49). doAt(a3,50). doAt(a21,51). doAt(a33,52). doAt(a14,53). doAt(a9,54). doAt(a19,55). doAt(a1,56). doAt(a6,57). doAt(endflow,58). doAt(a27,60). doAt(a13,61). doAt(a16,62). doAt(a7,63). doAt(a3,64). doAt(a21,65). doAt(a33,66). doAt(a14,67). doAt(a9,68). doAt(a19,69). doAt(a1,70). doAt(a6,71). doAt(endflow,72). compAt(a29,x27,6). compAt(a29,x28,20). compAt(a26,x23,29). compAt(a26,x8,32). compAt(a26,x8,41). subsAt(a29,9). leftrightnexts(47,60). leftrightnexts(25,35). leftrightnexts(8,19).