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(9,14).
next(14,15).
next(15,16).
next(16,17).
next(17,18).
next(18,19).
next(19,20).
next(20,21).
next(7,22).
next(22,23).
next(23,24).
next(24,25).
next(25,26).
next(26,27).
next(27,28).
next(28,29).
next(29,30).
next(30,31).
next(27,32).
next(32,33).
next(33,34).
next(34,35).
next(35,36).
next(36,37).
next(37,38).
next(38,39).
next(25,40).
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(45,50).
next(50,51).
next(51,52).
next(52,53).
next(53,54).
next(54,55).
next(55,56).
next(56,57).
next(23,58).
next(58,59).
next(59,60).
next(60,61).
next(61,62).
next(62,63).
next(63,64).
next(64,65).
next(61,66).
next(66,67).
next(67,68).
next(68,69).
next(69,70).
next(70,71).
next(71,72).
next(72,73).
next(59,74).
next(74,75).
next(75,76).
next(76,77).
next(77,78).
next(78,79).
next(79,80).
next(80,81).
next(81,82).
next(82,83).
next(79,84).
next(84,85).
next(85,86).
next(86,87).
next(87,88).
next(88,89).
next(89,90).
next(90,91).
doAt(startflow,3).
doAt(a15,4).
doAt(a20,5).
doAt(a22,6).
doAt(a24,7).
doAt(a21,8).
doAt(a23,9).
doAt(a16,10).
doAt(a11,11).
doAt(endflow,12).
doAt(a9,14).
doAt(a19,15).
doAt(a3,16).
doAt(a13,17).
doAt(a10,18).
doAt(a11,19).
doAt(endflow,20).
doAt(a2,22).
doAt(a25,23).
doAt(a4,24).
doAt(a8,25).
doAt(a18,26).
doAt(a23,27).
doAt(a16,28).
doAt(a11,29).
doAt(endflow,30).
doAt(a9,32).
doAt(a19,33).
doAt(a3,34).
doAt(a13,35).
doAt(a10,36).
doAt(a11,37).
doAt(endflow,38).
doAt(a5,40).
doAt(a1,41).
doAt(a6,42).
doAt(a17,43).
doAt(a14,44).
doAt(a23,45).
doAt(a16,46).
doAt(a11,47).
doAt(endflow,48).
doAt(a9,50).
doAt(a19,51).
doAt(a3,52).
doAt(a13,53).
doAt(a10,54).
doAt(a11,55).
doAt(endflow,56).
doAt(a12,58).
doAt(a8,59).
doAt(a18,60).
doAt(a23,61).
doAt(a16,62).
doAt(a11,63).
doAt(endflow,64).
doAt(a9,66).
doAt(a19,67).
doAt(a3,68).
doAt(a13,69).
doAt(a10,70).
doAt(a11,71).
doAt(endflow,72).
doAt(a5,74).
doAt(a1,75).
doAt(a6,76).
doAt(a17,77).
doAt(a14,78).
doAt(a23,79).
doAt(a16,80).
doAt(a11,81).
doAt(endflow,82).
doAt(a9,84).
doAt(a19,85).
doAt(a3,86).
doAt(a13,87).
doAt(a10,88).
doAt(a11,89).
doAt(endflow,90).
leftrightnexts(10,14).
leftrightnexts(28,32).
leftrightnexts(46,50).
leftrightnexts(26,40).
leftrightnexts(62,66).
leftrightnexts(80,84).
leftrightnexts(60,74).
leftrightnexts(24,58).
leftrightnexts(8,22).