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(8,14).
next(14,15).
next(15,16).
next(16,17).
next(17,18).
next(18,19).
next(15,20).
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(25,29).
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(40,41).
next(41,42).
next(42,43).
next(43,44).
next(30,45).
next(45,46).
next(46,47).
next(47,48).
next(48,49).
next(49,50).
next(50,51).
next(51,52).
next(48,53).
next(53,54).
next(54,55).
next(55,56).
next(56,57).
next(57,58).
next(58,59).
next(59,60).
next(60,61).
next(61,62).
next(62,63).
next(60,64).
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).
doAt(startflow,5).
doAt(a4,7).
doAt(a3,8).
doAt(a20,11).
doAt(endflow,12).
doAt(a44,15).
doAt(a40,16).
doAt(endflow,18).
doAt(a30,20).
doAt(a25,21).
doAt(a9,22).
doAt(a37,23).
doAt(a8,24).
doAt(a7,25).
doAt(a42,26).
doAt(endflow,27).
doAt(a24,29).
doAt(a29,30).
doAt(a5,31).
doAt(a14,32).
doAt(endflow,34).
doAt(a6,36).
doAt(a38,37).
doAt(a2,38).
doAt(a35,39).
doAt(a32,40).
doAt(a31,41).
doAt(endflow,43).
doAt(a43,45).
doAt(a17,46).
doAt(a27,47).
doAt(a34,48).
doAt(a23,49).
doAt(endflow,51).
doAt(a12,54).
doAt(a21,55).
doAt(a41,56).
doAt(a16,57).
doAt(a13,58).
doAt(a36,59).
doAt(a18,60).
doAt(a19,61).
doAt(endflow,62).
doAt(a15,64).
doAt(a33,65).
doAt(a45,66).
doAt(a39,67).
doAt(a10,68).
doAt(endflow,69).
doAt(a28,71).
doAt(a22,72).
doAt(a11,73).
doAt(a26,74).
doAt(a10,75).
doAt(endflow,76).
compAt(a20,x28,10).
compAt(a20,x28,14).
compAt(a20,x33,17).
compAt(a20,x33,33).
compAt(a20,x33,42).
compAt(a20,x33,50).
compAt(a20,x33,53).
subsAt(a4,6).
subsAt(a20,9).
leftrightnexts(32,36).
leftrightnexts(67,71).
leftrightnexts(61,64).
leftrightnexts(49,53).
leftrightnexts(31,45).
leftrightnexts(26,29).
leftrightnexts(16,20).
leftrightnexts(9,14).