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(13,17).
next(17,18).
next(18,19).
next(19,20).
next(20,21).
next(21,22).
next(11,23).
next(23,24).
next(24,25).
next(25,26).
next(26,27).
next(27,28).
next(25,29).
next(29,30).
next(30,31).
next(31,32).
next(32,33).
next(33,34).
next(23,35).
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(41,45).
next(45,46).
next(46,47).
next(47,48).
next(48,49).
next(49,50).
next(39,51).
next(51,52).
next(52,53).
next(53,54).
next(54,55).
next(52,56).
next(56,57).
next(57,58).
next(58,59).
next(59,60).
next(60,61).
next(36,62).
next(62,63).
next(63,64).
next(64,65).
next(65,66).
next(66,67).
next(67,68).
next(68,69).
next(66,70).
next(70,71).
next(71,72).
next(72,73).
next(73,74).
next(74,75).
next(64,76).
next(76,77).
next(77,78).
next(78,79).
next(79,80).
next(77,81).
next(81,82).
next(82,83).
next(83,84).
next(84,85).
next(85,86).
doAt(startflow,4).
doAt(a11,5).
doAt(a3,6).
doAt(a4,7).
doAt(a17,8).
doAt(a6,9).
doAt(a9,10).
doAt(a18,11).
doAt(a21,12).
doAt(a14,13).
doAt(a16,14).
doAt(endflow,15).
doAt(a25,17).
doAt(a12,18).
doAt(a23,19).
doAt(a7,20).
doAt(endflow,21).
doAt(a8,23).
doAt(a10,24).
doAt(a14,25).
doAt(a16,26).
doAt(endflow,27).
doAt(a25,29).
doAt(a12,30).
doAt(a23,31).
doAt(a7,32).
doAt(endflow,33).
doAt(a22,35).
doAt(a2,36).
doAt(a1,37).
doAt(a5,38).
doAt(a13,39).
doAt(a19,40).
doAt(a14,41).
doAt(a16,42).
doAt(endflow,43).
doAt(a25,45).
doAt(a12,46).
doAt(a23,47).
doAt(a7,48).
doAt(endflow,49).
doAt(a20,51).
doAt(a14,52).
doAt(a16,53).
doAt(endflow,54).
doAt(a25,56).
doAt(a12,57).
doAt(a23,58).
doAt(a7,59).
doAt(endflow,60).
doAt(a24,62).
doAt(a5,63).
doAt(a13,64).
doAt(a19,65).
doAt(a14,66).
doAt(a16,67).
doAt(endflow,68).
doAt(a25,70).
doAt(a12,71).
doAt(a23,72).
doAt(a7,73).
doAt(endflow,74).
doAt(a20,76).
doAt(a14,77).
doAt(a16,78).
doAt(endflow,79).
doAt(a25,81).
doAt(a12,82).
doAt(a23,83).
doAt(a7,84).
doAt(endflow,85).
leftrightnexts(14,17).
leftrightnexts(26,29).
leftrightnexts(42,45).
leftrightnexts(53,56).
leftrightnexts(40,51).
leftrightnexts(67,70).
leftrightnexts(78,81).
leftrightnexts(65,76).
leftrightnexts(37,62).
leftrightnexts(24,35).
leftrightnexts(12,23).