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(9,16).
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(26,27).
next(27,28).
next(28,29).
next(29,30).
next(30,31).
next(31,32).
next(32,33).
next(23,34).
next(34,35).
next(35,36).
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(22,47).
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(55,56).
next(56,57).
next(21,58).
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).
doAt(startflow,6).
doAt(a7,8).
doAt(a24,9).
doAt(a9,11).
doAt(a21,13).
doAt(endflow,14).
doAt(a11,16).
doAt(a19,18).
doAt(a1,19).
doAt(a22,20).
doAt(a18,21).
doAt(a4,22).
doAt(a16,23).
doAt(a17,24).
doAt(endflow,32).
doAt(a12,34).
doAt(a25,35).
doAt(a13,36).
doAt(a20,37).
doAt(a10,38).
doAt(a2,39).
doAt(endflow,45).
doAt(a15,47).
doAt(a23,50).
doAt(a6,51).
doAt(endflow,56).
doAt(a3,59).
doAt(a14,61).
doAt(a5,63).
doAt(endflow,68).
compAt(a21,x16,12).
compAt(a21,x16,17).
compAt(a9,x1,25).
compAt(a9,x6,26).
compAt(a9,x14,27).
compAt(a9,x25,28).
compAt(a21,x8,29).
compAt(a21,x9,30).
compAt(a21,x15,31).
compAt(a9,x1,40).
compAt(a9,x6,41).
compAt(a9,x14,42).
compAt(a9,x25,43).
compAt(a21,x9,44).
compAt(a9,x6,48).
compAt(a9,x14,49).
compAt(a9,x1,52).
compAt(a9,x25,53).
compAt(a21,x8,54).
compAt(a21,x15,55).
compAt(a21,x9,58).
compAt(a9,x6,60).
compAt(a21,x15,62).
compAt(a9,x1,64).
compAt(a9,x14,65).
compAt(a9,x25,66).
compAt(a21,x8,67).
subsAt(a7,7).
subsAt(a9,10).
leftrightnexts(24,34).
leftrightnexts(23,47).
leftrightnexts(22,58).
leftrightnexts(10,16).