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(14,18).
next(18,19).
next(19,20).
next(10,21).
next(21,22).
next(22,23).
next(23,24).
next(24,25).
next(25,26).
next(26,27).
next(24,28).
next(28,29).
next(29,30).
next(21,31).
next(31,32).
next(32,33).
next(33,34).
next(34,35).
next(35,36).
next(36,37).
next(37,38).
next(35,39).
next(39,40).
next(40,41).
next(8,42).
next(42,43).
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(51,56).
next(56,57).
next(57,58).
next(58,59).
next(48,60).
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(67,72).
next(72,73).
next(73,74).
next(74,75).
doAt(startflow,6).
doAt(a13,8).
doAt(a12,10).
doAt(a6,12).
doAt(a24,13).
doAt(a18,14).
doAt(a16,15).
doAt(endflow,16).
doAt(a8,18).
doAt(endflow,19).
doAt(a3,21).
doAt(a5,22).
doAt(a24,23).
doAt(a18,24).
doAt(a16,25).
doAt(endflow,26).
doAt(a8,28).
doAt(endflow,29).
doAt(a7,31).
doAt(a22,33).
doAt(a24,34).
doAt(a18,35).
doAt(a16,36).
doAt(endflow,37).
doAt(a8,39).
doAt(endflow,40).
doAt(a23,42).
doAt(a19,43).
doAt(a21,44).
doAt(a15,45).
doAt(a10,47).
doAt(a11,48).
doAt(a20,49).
doAt(a24,50).
doAt(a18,51).
doAt(a16,52).
doAt(endflow,54).
doAt(a8,56).
doAt(endflow,58).
doAt(a9,60).
doAt(a25,61).
doAt(a2,62).
doAt(a17,63).
doAt(a14,64).
doAt(a1,65).
doAt(a24,66).
doAt(a18,67).
doAt(a16,68).
doAt(endflow,70).
doAt(a8,72).
doAt(endflow,74).
compAt(a24,x22,7).
compAt(a6,x15,9).
compAt(a24,x19,11).
compAt(a24,x19,32).
compAt(a24,x19,46).
compAt(a6,x15,53).
compAt(a6,x15,57).
compAt(a6,x15,69).
compAt(a6,x15,73).
leftrightnexts(15,18).
leftrightnexts(25,28).
leftrightnexts(36,39).
leftrightnexts(22,31).
leftrightnexts(11,21).
leftrightnexts(52,56).
leftrightnexts(68,72).
leftrightnexts(49,60).
leftrightnexts(9,42).