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(12,19).
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(19,28).
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(31,38).
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(46,47).
next(47,48).
next(48,49).
next(38,50).
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(58,59).
next(59,60).
next(60,61).
next(61,62).
doAt(startflow,6).
doAt(a23,9).
doAt(a22,11).
doAt(a1,12).
doAt(a6,14).
doAt(a10,15).
doAt(a16,16).
doAt(endflow,17).
doAt(a9,19).
doAt(a4,21).
doAt(a10,22).
doAt(a16,23).
doAt(endflow,26).
doAt(a14,28).
doAt(a11,29).
doAt(a7,30).
doAt(a3,31).
doAt(a17,33).
doAt(a10,34).
doAt(a16,35).
doAt(endflow,36).
doAt(a2,38).
doAt(a19,39).
doAt(a12,40).
doAt(a20,41).
doAt(a8,42).
doAt(a15,43).
doAt(a18,44).
doAt(a10,45).
doAt(a16,46).
doAt(endflow,48).
doAt(a24,50).
doAt(a25,51).
doAt(a13,52).
doAt(a21,53).
doAt(a12,54).
doAt(a20,55).
doAt(a8,56).
doAt(a15,57).
doAt(a18,58).
doAt(a10,59).
doAt(a16,60).
doAt(endflow,61).
compAt(a22,x6,7).
compAt(a23,x6,8).
compAt(a22,x6,10).
compAt(a6,x8,13).
compAt(a6,x8,20).
compAt(a6,x9,24).
compAt(a6,x20,25).
compAt(a6,x9,32).
compAt(a6,x9,47).
leftrightnexts(39,50).
leftrightnexts(32,38).
leftrightnexts(20,28).
leftrightnexts(13,19).