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(11,15).
next(15,16).
next(16,17).
next(17,18).
next(18,19).
next(16,20).
next(20,21).
next(21,22).
next(22,23).
next(8,24).
next(24,25).
next(25,26).
next(26,27).
next(27,28).
next(28,29).
next(29,30).
next(30,31).
next(26,32).
next(32,33).
next(33,34).
next(34,35).
next(35,36).
next(36,37).
next(33,38).
next(38,39).
next(39,40).
next(40,41).
next(41,42).
next(24,43).
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(54,58).
next(58,59).
next(59,60).
next(60,61).
next(61,62).
next(59,63).
next(63,64).
next(64,65).
next(65,66).
next(52,67).
next(67,68).
next(68,69).
next(69,70).
next(70,71).
next(71,72).
next(72,73).
next(70,74).
next(74,75).
next(75,76).
next(76,77).
next(77,78).
next(75,79).
next(79,80).
next(80,81).
next(81,82).
doAt(startflow,6).
doAt(a18,7).
doAt(a24,8).
doAt(a3,10).
doAt(a10,11).
doAt(a1,12).
doAt(endflow,13).
doAt(a17,15).
doAt(a16,16).
doAt(a21,17).
doAt(endflow,18).
doAt(a8,20).
doAt(a15,21).
doAt(endflow,22).
doAt(a5,24).
doAt(a23,25).
doAt(a10,26).
doAt(a1,27).
doAt(endflow,30).
doAt(a17,32).
doAt(a16,33).
doAt(a21,34).
doAt(endflow,36).
doAt(a8,38).
doAt(a15,39).
doAt(endflow,41).
doAt(a20,43).
doAt(a2,44).
doAt(a19,47).
doAt(a7,48).
doAt(a4,49).
doAt(a6,50).
doAt(a25,51).
doAt(a13,52).
doAt(a12,53).
doAt(a10,54).
doAt(a1,55).
doAt(endflow,56).
doAt(a17,58).
doAt(a16,59).
doAt(a21,60).
doAt(endflow,61).
doAt(a8,63).
doAt(a15,64).
doAt(endflow,65).
doAt(a14,67).
doAt(a22,68).
doAt(a9,69).
doAt(a10,70).
doAt(a1,71).
doAt(endflow,72).
doAt(a17,74).
doAt(a16,75).
doAt(a21,76).
doAt(endflow,77).
doAt(a8,79).
doAt(a15,80).
doAt(endflow,81).
compAt(a3,x6,28).
compAt(a3,x16,29).
compAt(a3,x6,35).
compAt(a3,x6,40).
compAt(a3,x6,45).
compAt(a3,x16,46).
subsAt(a3,9).
leftrightnexts(17,20).
leftrightnexts(12,15).
leftrightnexts(34,38).
leftrightnexts(27,32).
leftrightnexts(60,63).
leftrightnexts(55,58).
leftrightnexts(76,79).
leftrightnexts(71,74).
leftrightnexts(53,67).
leftrightnexts(25,43).
leftrightnexts(9,24).