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(15,19).
next(19,20).
next(20,21).
next(21,22).
next(19,23).
next(23,24).
next(24,25).
next(13,26).
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(34,38).
next(38,39).
next(39,40).
next(40,41).
next(38,42).
next(42,43).
next(43,44).
next(7,45).
next(45,46).
next(46,47).
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(57,58).
next(55,59).
next(59,60).
next(60,61).
next(61,62).
next(59,63).
next(63,64).
next(64,65).
next(53,66).
next(66,67).
next(67,68).
next(68,69).
next(69,70).
next(70,71).
next(71,72).
next(72,73).
next(73,74).
next(74,75).
next(75,76).
next(76,77).
next(74,78).
next(78,79).
next(79,80).
next(80,81).
next(78,82).
next(82,83).
next(83,84).
doAt(startflow,5).
doAt(a11,7).
doAt(a23,8).
doAt(a21,9).
doAt(a14,10).
doAt(a5,11).
doAt(a24,12).
doAt(a8,13).
doAt(a13,14).
doAt(a20,15).
doAt(a6,16).
doAt(endflow,17).
doAt(a9,19).
doAt(a22,20).
doAt(endflow,21).
doAt(a10,23).
doAt(endflow,24).
doAt(a25,26).
doAt(a19,27).
doAt(a3,28).
doAt(a1,29).
doAt(a16,30).
doAt(a15,31).
doAt(a17,32).
doAt(a2,33).
doAt(a20,34).
doAt(a6,35).
doAt(endflow,36).
doAt(a9,38).
doAt(a22,39).
doAt(endflow,40).
doAt(a10,42).
doAt(endflow,43).
doAt(a4,45).
doAt(a12,46).
doAt(a18,47).
doAt(a21,48).
doAt(a14,49).
doAt(a5,51).
doAt(a24,52).
doAt(a8,53).
doAt(a13,54).
doAt(a20,55).
doAt(a6,56).
doAt(endflow,57).
doAt(a9,59).
doAt(a22,60).
doAt(endflow,61).
doAt(a10,63).
doAt(endflow,64).
doAt(a25,66).
doAt(a19,67).
doAt(a3,68).
doAt(a1,69).
doAt(a16,70).
doAt(a15,71).
doAt(a17,72).
doAt(a2,73).
doAt(a20,74).
doAt(a6,75).
doAt(endflow,76).
doAt(a9,78).
doAt(a22,79).
doAt(endflow,80).
doAt(a10,82).
doAt(endflow,83).
compAt(a23,x3,6).
compAt(a23,x21,50).
leftrightnexts(20,23).
leftrightnexts(16,19).
leftrightnexts(39,42).
leftrightnexts(35,38).
leftrightnexts(14,26).
leftrightnexts(60,63).
leftrightnexts(56,59).
leftrightnexts(79,82).
leftrightnexts(75,78).
leftrightnexts(54,66).
leftrightnexts(8,45).