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(18,19).
next(19,20).
next(20,21).
next(21,22).
next(22,23).
next(23,24).
next(24,25).
next(25,26).
next(23,27).
next(27,28).
next(28,29).
next(29,30).
next(27,31).
next(31,32).
next(32,33).
next(22,34).
next(34,35).
next(15,36).
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(45,49).
next(49,50).
next(50,51).
next(51,52).
next(49,53).
next(53,54).
next(54,55).
next(44,56).
next(56,57).
next(39,58).
next(58,59).
next(59,60).
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(69,73).
next(73,74).
next(74,75).
next(75,76).
next(73,77).
next(77,78).
next(78,79).
next(68,80).
next(80,81).
doAt(startflow,8).
doAt(a1,11).
doAt(a23,13).
doAt(a20,14).
doAt(a10,15).
doAt(a14,18).
doAt(a6,20).
doAt(a16,21).
doAt(a13,22).
doAt(a18,23).
doAt(a25,24).
doAt(endflow,25).
doAt(a15,27).
doAt(a9,28).
doAt(endflow,29).
doAt(a2,31).
doAt(endflow,32).
doAt(endflow,34).
doAt(a24,37).
doAt(a4,38).
doAt(a21,39).
doAt(a8,40).
doAt(a6,42).
doAt(a16,43).
doAt(a13,44).
doAt(a18,45).
doAt(a25,46).
doAt(endflow,47).
doAt(a15,49).
doAt(a9,50).
doAt(endflow,51).
doAt(a2,53).
doAt(endflow,54).
doAt(endflow,56).
doAt(a17,58).
doAt(a11,59).
doAt(a7,60).
doAt(a19,61).
doAt(a5,62).
doAt(a12,63).
doAt(a3,64).
doAt(a6,66).
doAt(a16,67).
doAt(a13,68).
doAt(a18,69).
doAt(a25,70).
doAt(endflow,71).
doAt(a15,73).
doAt(a9,74).
doAt(endflow,75).
doAt(a2,77).
doAt(endflow,78).
doAt(endflow,80).
compAt(a1,x16,9).
compAt(a14,x1,12).
compAt(a6,x18,17).
compAt(a14,x5,36).
subsAt(a1,10).
subsAt(a14,16).
subsAt(a6,19).
subsAt(a6,41).
subsAt(a6,65).
leftrightnexts(28,31).
leftrightnexts(24,27).
leftrightnexts(23,34).
leftrightnexts(50,53).
leftrightnexts(46,49).
leftrightnexts(45,56).
leftrightnexts(74,77).
leftrightnexts(70,73).
leftrightnexts(69,80).
leftrightnexts(40,58).
leftrightnexts(16,36).