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(8,26).
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(35,42).
next(42,43).
next(43,44).
next(44,45).
next(45,46).
next(46,47).
next(47,48).
next(48,49).
next(42,50).
next(50,51).
next(51,52).
next(52,53).
next(53,54).
next(54,55).
next(55,56).
next(56,57).
next(57,58).
next(51,59).
next(59,60).
next(60,61).
next(61,62).
next(62,63).
next(63,64).
next(64,65).
next(65,66).
doAt(startflow,7).
doAt(a21,8).
doAt(a7,9).
doAt(a10,11).
doAt(a25,13).
doAt(a22,15).
doAt(endflow,16).
doAt(a2,18).
doAt(a12,19).
doAt(a22,21).
doAt(endflow,24).
doAt(a5,26).
doAt(a14,27).
doAt(a13,28).
doAt(a6,29).
doAt(a18,30).
doAt(a11,31).
doAt(a23,32).
doAt(a24,33).
doAt(a4,34).
doAt(a20,35).
doAt(a16,36).
doAt(a22,38).
doAt(endflow,40).
doAt(a9,42).
doAt(a17,43).
doAt(a22,45).
doAt(endflow,48).
doAt(a19,51).
doAt(a15,52).
doAt(a22,54).
doAt(endflow,57).
doAt(a1,59).
doAt(a3,60).
doAt(a22,62).
doAt(endflow,65).
compAt(a22,x25,10).
compAt(a22,x9,12).
compAt(a25,x3,22).
compAt(a25,x22,23).
compAt(a25,x22,39).
compAt(a25,x3,46).
compAt(a25,x22,47).
compAt(a22,x16,50).
compAt(a25,x3,55).
compAt(a25,x22,56).
compAt(a25,x3,63).
compAt(a25,x22,64).
subsAt(a22,14).
subsAt(a22,20).
subsAt(a22,37).
subsAt(a22,44).
subsAt(a22,53).
subsAt(a22,61).
leftrightnexts(12,18).
leftrightnexts(52,59).
leftrightnexts(43,50).
leftrightnexts(36,42).
leftrightnexts(9,26).