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(16,22).
next(22,23).
next(23,24).
next(24,25).
next(25,26).
next(26,27).
next(27,28).
next(28,29).
next(15,30).
next(30,31).
next(31,32).
next(32,33).
next(33,34).
next(8,35).
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(45,46).
next(46,47).
next(42,48).
next(48,49).
next(49,50).
next(50,51).
next(51,52).
next(52,53).
next(53,54).
next(54,55).
next(41,56).
next(56,57).
next(57,58).
next(58,59).
next(59,60).
next(7,61).
next(61,62).
next(62,63).
next(63,64).
next(64,65).
next(65,66).
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(71,77).
next(77,78).
next(78,79).
next(79,80).
next(80,81).
next(81,82).
next(82,83).
next(83,84).
next(70,85).
next(85,86).
next(86,87).
next(87,88).
next(88,89).
doAt(startflow,5).
doAt(a4,6).
doAt(a5,7).
doAt(a25,8).
doAt(a15,9).
doAt(a23,10).
doAt(a14,11).
doAt(a20,12).
doAt(a19,13).
doAt(a24,14).
doAt(a11,15).
doAt(a10,16).
doAt(a6,17).
doAt(a9,18).
doAt(a8,19).
doAt(endflow,20).
doAt(a22,22).
doAt(a17,23).
doAt(a3,24).
doAt(a7,25).
doAt(a9,26).
doAt(a8,27).
doAt(endflow,28).
doAt(a2,30).
doAt(a9,31).
doAt(a8,32).
doAt(endflow,33).
doAt(a18,35).
doAt(a23,36).
doAt(a14,37).
doAt(a20,38).
doAt(a19,39).
doAt(a24,40).
doAt(a11,41).
doAt(a10,42).
doAt(a6,43).
doAt(a9,44).
doAt(a8,45).
doAt(endflow,46).
doAt(a22,48).
doAt(a17,49).
doAt(a3,50).
doAt(a7,51).
doAt(a9,52).
doAt(a8,53).
doAt(endflow,54).
doAt(a2,56).
doAt(a9,57).
doAt(a8,58).
doAt(endflow,59).
doAt(a1,61).
doAt(a12,62).
doAt(a16,63).
doAt(a21,64).
doAt(a23,65).
doAt(a14,66).
doAt(a20,67).
doAt(a19,68).
doAt(a24,69).
doAt(a11,70).
doAt(a10,71).
doAt(a6,72).
doAt(a9,73).
doAt(a8,74).
doAt(endflow,75).
doAt(a22,77).
doAt(a17,78).
doAt(a3,79).
doAt(a7,80).
doAt(a9,81).
doAt(a8,82).
doAt(endflow,83).
doAt(a2,85).
doAt(a9,86).
doAt(a8,87).
doAt(endflow,88).
leftrightnexts(17,22).
leftrightnexts(16,30).
leftrightnexts(43,48).
leftrightnexts(42,56).
leftrightnexts(9,35).
leftrightnexts(72,77).
leftrightnexts(71,85).
leftrightnexts(8,61).