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(16,20).
next(20,21).
next(21,22).
next(22,23).
next(23,24).
next(14,25).
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(35,36).
next(36,37).
next(37,38).
next(38,39).
next(33,40).
next(40,41).
next(41,42).
next(42,43).
next(43,44).
next(44,45).
next(40,46).
next(46,47).
next(47,48).
next(48,49).
next(49,50).
next(50,51).
next(51,52).
next(52,53).
next(26,54).
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(63,64).
next(64,65).
next(65,66).
next(60,67).
next(67,68).
next(68,69).
next(69,70).
next(70,71).
next(71,72).
next(67,73).
next(73,74).
next(74,75).
next(75,76).
next(76,77).
next(77,78).
next(78,79).
next(79,80).
doAt(startflow,7).
doAt(a11,11).
doAt(a20,13).
doAt(a25,14).
doAt(a2,16).
doAt(a13,17).
doAt(endflow,18).
doAt(a5,20).
doAt(endflow,23).
doAt(a16,25).
doAt(a9,26).
doAt(a7,27).
doAt(a12,28).
doAt(a24,29).
doAt(a19,30).
doAt(a14,31).
doAt(a3,32).
doAt(a8,33).
doAt(a6,34).
doAt(a21,35).
doAt(endflow,38).
doAt(a15,40).
doAt(a17,42).
doAt(a21,43).
doAt(endflow,44).
doAt(a10,47).
doAt(a23,48).
doAt(a1,49).
doAt(a22,50).
doAt(a21,51).
doAt(endflow,52).
doAt(a4,54).
doAt(a12,55).
doAt(a24,56).
doAt(a19,57).
doAt(a14,58).
doAt(a3,59).
doAt(a8,60).
doAt(a6,61).
doAt(a21,62).
doAt(endflow,65).
doAt(a15,67).
doAt(a17,69).
doAt(a21,70).
doAt(endflow,71).
doAt(a10,74).
doAt(a23,75).
doAt(a1,76).
doAt(a22,77).
doAt(a21,78).
doAt(endflow,79).
compAt(a13,x12,8).
compAt(a11,x12,9).
compAt(a13,x12,15).
compAt(a13,x11,21).
compAt(a13,x18,22).
compAt(a13,x11,36).
compAt(a13,x18,37).
compAt(a13,x18,41).
compAt(a13,x18,46).
compAt(a13,x11,63).
compAt(a13,x18,64).
compAt(a13,x18,68).
compAt(a13,x18,73).
subsAt(a11,10).
subsAt(a20,12).
leftrightnexts(17,20).
leftrightnexts(41,46).
leftrightnexts(34,40).
leftrightnexts(68,73).
leftrightnexts(61,67).
leftrightnexts(27,54).
leftrightnexts(15,25).