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(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(33,34).
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(42,46).
next(46,47).
next(47,48).
next(48,49).
next(49,50).
next(50,51).
next(29,52).
next(52,53).
next(53,54).
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(61,65).
next(65,66).
next(66,67).
next(67,68).
next(68,69).
next(69,70).
doAt(startflow,8).
doAt(a8,19).
doAt(a7,25).
doAt(a2,29).
doAt(a4,33).
doAt(a1,38).
doAt(a5,41).
doAt(a9,42).
doAt(a13,43).
doAt(endflow,44).
doAt(a14,46).
doAt(a12,47).
doAt(a10,48).
doAt(a3,49).
doAt(endflow,50).
doAt(a15,58).
doAt(a6,59).
doAt(a5,60).
doAt(a9,61).
doAt(a13,62).
doAt(endflow,63).
doAt(a14,65).
doAt(a12,66).
doAt(a10,67).
doAt(a3,68).
doAt(endflow,69).
compAt(a5,x1,9).
compAt(a1,x1,10).
compAt(a4,x1,11).
compAt(a7,x1,12).
compAt(a8,x1,13).
compAt(a5,x2,14).
compAt(a1,x2,15).
compAt(a4,x2,16).
compAt(a7,x2,17).
compAt(a8,x2,18).
compAt(a5,x1,21).
compAt(a1,x1,22).
compAt(a4,x1,23).
compAt(a7,x1,24).
compAt(a5,x2,26).
compAt(a1,x2,27).
compAt(a4,x2,28).
compAt(a5,x1,30).
compAt(a1,x1,31).
compAt(a4,x1,32).
compAt(a5,x1,34).
compAt(a1,x1,35).
compAt(a5,x3,36).
compAt(a1,x3,37).
compAt(a5,x1,39).
compAt(a5,x3,40).
compAt(a5,x1,52).
compAt(a1,x1,53).
compAt(a4,x1,54).
compAt(a5,x3,55).
compAt(a1,x3,56).
compAt(a4,x3,57).
subsAt(a7,20).
leftrightnexts(43,46).
leftrightnexts(62,65).
leftrightnexts(30,52).