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(19,23).
next(23,24).
next(24,25).
next(25,26).
next(26,27).
next(27,28).
next(28,29).
next(26,30).
next(30,31).
next(31,32).
next(17,33).
next(33,34).
next(34,35).
next(35,36).
next(36,37).
next(37,38).
next(38,39).
next(39,40).
next(37,41).
next(41,42).
next(42,43).
next(43,44).
next(44,45).
next(45,46).
next(46,47).
next(44,48).
next(48,49).
next(49,50).
next(35,51).
next(51,52).
next(52,53).
next(53,54).
next(54,55).
next(55,56).
next(53,57).
next(57,58).
next(58,59).
next(59,60).
next(60,61).
next(61,62).
next(62,63).
next(60,64).
next(64,65).
next(65,66).
next(16,67).
next(67,68).
next(68,69).
next(69,70).
next(70,71).
next(71,72).
next(72,73).
next(70,74).
next(74,75).
next(75,76).
next(76,77).
next(77,78).
next(78,79).
next(79,80).
next(77,81).
next(81,82).
next(82,83).
doAt(startflow,7).
doAt(a19,9).
doAt(a24,10).
doAt(a10,13).
doAt(a2,15).
doAt(a4,16).
doAt(a22,17).
doAt(a21,18).
doAt(a18,19).
doAt(a12,20).
doAt(endflow,21).
doAt(a13,23).
doAt(a17,24).
doAt(a25,25).
doAt(a1,26).
doAt(a7,27).
doAt(endflow,28).
doAt(a20,30).
doAt(endflow,31).
doAt(a15,33).
doAt(a23,34).
doAt(a16,35).
doAt(a14,36).
doAt(a18,37).
doAt(a12,38).
doAt(endflow,39).
doAt(a13,41).
doAt(a17,42).
doAt(a25,43).
doAt(a1,44).
doAt(a7,45).
doAt(endflow,46).
doAt(a20,48).
doAt(endflow,49).
doAt(a3,51).
doAt(a9,52).
doAt(a18,53).
doAt(a12,54).
doAt(endflow,55).
doAt(a13,57).
doAt(a17,58).
doAt(a25,59).
doAt(a1,60).
doAt(a7,61).
doAt(endflow,62).
doAt(a20,64).
doAt(endflow,65).
doAt(a5,67).
doAt(a11,68).
doAt(a6,69).
doAt(a18,70).
doAt(a12,71).
doAt(endflow,72).
doAt(a13,74).
doAt(a17,75).
doAt(a25,76).
doAt(a1,77).
doAt(a7,78).
doAt(endflow,79).
doAt(a20,81).
doAt(endflow,82).
compAt(a24,x9,8).
compAt(a10,x15,12).
subsAt(a10,11).
subsAt(a2,14).
leftrightnexts(27,30).
leftrightnexts(20,23).
leftrightnexts(45,48).
leftrightnexts(38,41).
leftrightnexts(61,64).
leftrightnexts(54,57).
leftrightnexts(36,51).
leftrightnexts(18,33).
leftrightnexts(78,81).
leftrightnexts(71,74).
leftrightnexts(17,67).