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(14,20).
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(28,29).
next(29,30).
next(23,31).
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(33,41).
next(41,42).
next(42,43).
next(43,44).
next(44,45).
next(45,46).
next(46,47).
next(22,48).
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(49,58).
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).
doAt(startflow,7).
doAt(a14,10).
doAt(a17,12).
doAt(a1,13).
doAt(a16,14).
doAt(a11,15).
doAt(a2,16).
doAt(a25,17).
doAt(endflow,18).
doAt(a15,20).
doAt(a20,21).
doAt(a5,22).
doAt(a24,23).
doAt(a23,24).
doAt(a2,26).
doAt(a25,27).
doAt(endflow,29).
doAt(a7,31).
doAt(a21,32).
doAt(a13,33).
doAt(a3,34).
doAt(a2,36).
doAt(a25,37).
doAt(endflow,39).
doAt(a10,41).
doAt(a2,43).
doAt(a25,44).
doAt(endflow,46).
doAt(a19,48).
doAt(a22,49).
doAt(a8,50).
doAt(a12,51).
doAt(a2,53).
doAt(a25,54).
doAt(endflow,56).
doAt(a18,58).
doAt(a9,59).
doAt(a6,60).
doAt(a12,61).
doAt(a2,63).
doAt(a25,64).
doAt(endflow,66).
compAt(a14,x11,8).
compAt(a1,x23,11).
compAt(a11,x3,25).
compAt(a11,x13,28).
compAt(a11,x3,35).
compAt(a11,x13,38).
compAt(a11,x3,42).
compAt(a11,x13,45).
compAt(a11,x3,52).
compAt(a11,x13,55).
compAt(a11,x3,62).
compAt(a11,x13,65).
subsAt(a14,9).
leftrightnexts(34,41).
leftrightnexts(24,31).
leftrightnexts(50,58).
leftrightnexts(23,48).
leftrightnexts(15,20).