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(11,16).
next(16,17).
next(17,18).
next(18,19).
next(19,20).
next(16,21).
next(21,22).
next(22,23).
next(23,24).
next(6,25).
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(34,35).
next(31,36).
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(26,45).
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(55,60).
next(60,61).
next(61,62).
next(62,63).
next(63,64).
next(60,65).
next(65,66).
next(66,67).
next(67,68).
next(48,69).
next(69,70).
next(70,71).
next(71,72).
next(72,73).
next(73,74).
next(74,75).
next(75,76).
next(76,77).
next(77,78).
next(78,79).
next(75,80).
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(a14,4).
doAt(a1,5).
doAt(a2,6).
doAt(a9,7).
doAt(a16,8).
doAt(a22,9).
doAt(a15,10).
doAt(a3,11).
doAt(a23,12).
doAt(a7,13).
doAt(endflow,14).
doAt(a12,16).
doAt(a20,17).
doAt(a7,18).
doAt(endflow,19).
doAt(a17,21).
doAt(a7,22).
doAt(endflow,23).
doAt(a10,25).
doAt(a13,26).
doAt(a18,27).
doAt(a16,28).
doAt(a22,29).
doAt(a15,30).
doAt(a3,31).
doAt(a23,32).
doAt(a7,33).
doAt(endflow,34).
doAt(a12,36).
doAt(a20,37).
doAt(a7,38).
doAt(endflow,39).
doAt(a17,41).
doAt(a7,42).
doAt(endflow,43).
doAt(a8,45).
doAt(a21,46).
doAt(a19,47).
doAt(a24,48).
doAt(a5,49).
doAt(a4,50).
doAt(a25,51).
doAt(a16,52).
doAt(a22,53).
doAt(a15,54).
doAt(a3,55).
doAt(a23,56).
doAt(a7,57).
doAt(endflow,58).
doAt(a12,60).
doAt(a20,61).
doAt(a7,62).
doAt(endflow,63).
doAt(a17,65).
doAt(a7,66).
doAt(endflow,67).
doAt(a6,69).
doAt(a4,70).
doAt(a25,71).
doAt(a16,72).
doAt(a22,73).
doAt(a15,74).
doAt(a3,75).
doAt(a23,76).
doAt(a7,77).
doAt(endflow,78).
doAt(a12,80).
doAt(a20,81).
doAt(a7,82).
doAt(endflow,83).
doAt(a17,85).
doAt(a7,86).
doAt(endflow,87).
leftrightnexts(17,21).
leftrightnexts(12,16).
leftrightnexts(37,41).
leftrightnexts(32,36).
leftrightnexts(61,65).
leftrightnexts(56,60).
leftrightnexts(81,85).
leftrightnexts(76,80).
leftrightnexts(49,69).
leftrightnexts(27,45).
leftrightnexts(7,25).