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(11,18).
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(26,27).
next(27,28).
next(21,29).
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(39,40).
next(40,41).
next(34,42).
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(45,52).
next(52,53).
next(53,54).
next(54,55).
next(55,56).
next(56,57).
next(57,58).
next(58,59).
next(18,60).
next(60,61).
next(61,62).
next(62,63).
next(63,64).
next(64,65).
next(65,66).
next(66,67).
next(67,68).
doAt(startflow,7).
doAt(a14,9).
doAt(a5,11).
doAt(a12,12).
doAt(a11,13).
doAt(a24,14).
doAt(a25,15).
doAt(endflow,16).
doAt(a9,18).
doAt(a7,20).
doAt(a1,21).
doAt(a18,22).
doAt(a24,23).
doAt(a25,24).
doAt(endflow,27).
doAt(a2,30).
doAt(a19,31).
doAt(a3,32).
doAt(a4,33).
doAt(a10,34).
doAt(a16,35).
doAt(a24,36).
doAt(a25,37).
doAt(endflow,40).
doAt(a20,42).
doAt(a6,44).
doAt(a8,45).
doAt(a23,46).
doAt(a24,47).
doAt(a25,48).
doAt(endflow,50).
doAt(a17,52).
doAt(a22,53).
doAt(a15,54).
doAt(a24,55).
doAt(a25,56).
doAt(endflow,58).
doAt(a21,60).
doAt(a24,61).
doAt(a25,62).
doAt(endflow,67).
compAt(a11,x5,10).
compAt(a11,x2,19).
compAt(a12,x14,25).
compAt(a12,x22,26).
compAt(a12,x22,29).
compAt(a12,x10,38).
compAt(a12,x14,39).
compAt(a12,x10,43).
compAt(a12,x14,49).
compAt(a12,x14,57).
compAt(a12,x10,63).
compAt(a12,x14,64).
compAt(a12,x22,65).
compAt(a11,x2,66).
subsAt(a14,8).
leftrightnexts(46,52).
leftrightnexts(35,42).
leftrightnexts(22,29).
leftrightnexts(19,60).
leftrightnexts(12,18).