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(12,16).
next(16,17).
next(17,18).
next(6,19).
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(27,28).
next(28,29).
next(29,30).
next(30,31).
next(31,32).
next(32,33).
next(30,34).
next(34,35).
next(35,36).
next(25,37).
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(44,48).
next(48,49).
next(49,50).
next(24,51).
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(21,62).
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(70,74).
next(74,75).
next(75,76).
next(65,77).
next(77,78).
next(78,79).
next(79,80).
next(80,81).
next(81,82).
next(82,83).
next(83,84).
next(84,85).
next(85,86).
next(86,87).
next(84,88).
next(88,89).
next(89,90).
next(64,91).
next(91,92).
next(92,93).
next(93,94).
next(94,95).
next(95,96).
next(96,97).
next(97,98).
next(95,99).
next(99,100).
next(100,101).
doAt(startflow,3).
doAt(a3,5).
doAt(a5,6).
doAt(a6,7).
doAt(a1,8).
doAt(a18,9).
doAt(a4,10).
doAt(a17,11).
doAt(a21,12).
doAt(a16,13).
doAt(endflow,14).
doAt(a2,16).
doAt(endflow,17).
doAt(a7,19).
doAt(a19,20).
doAt(a13,21).
doAt(a22,22).
doAt(a9,23).
doAt(a25,24).
doAt(a12,25).
doAt(a11,26).
doAt(a18,27).
doAt(a4,28).
doAt(a17,29).
doAt(a21,30).
doAt(a16,31).
doAt(endflow,32).
doAt(a2,34).
doAt(endflow,35).
doAt(a15,37).
doAt(a20,38).
doAt(a14,39).
doAt(a10,40).
doAt(a18,41).
doAt(a4,42).
doAt(a17,43).
doAt(a21,44).
doAt(a16,45).
doAt(endflow,46).
doAt(a2,48).
doAt(endflow,49).
doAt(a8,51).
doAt(a18,52).
doAt(a4,53).
doAt(a17,54).
doAt(a21,55).
doAt(a16,56).
doAt(endflow,57).
doAt(a2,59).
doAt(endflow,60).
doAt(a23,62).
doAt(a9,63).
doAt(a25,64).
doAt(a12,65).
doAt(a11,66).
doAt(a18,67).
doAt(a4,68).
doAt(a17,69).
doAt(a21,70).
doAt(a16,71).
doAt(endflow,72).
doAt(a2,74).
doAt(endflow,75).
doAt(a15,77).
doAt(a20,78).
doAt(a14,79).
doAt(a10,80).
doAt(a18,81).
doAt(a4,82).
doAt(a17,83).
doAt(a21,84).
doAt(a16,85).
doAt(endflow,86).
doAt(a2,88).
doAt(endflow,89).
doAt(a8,91).
doAt(a18,92).
doAt(a4,93).
doAt(a17,94).
doAt(a21,95).
doAt(a16,96).
doAt(endflow,97).
doAt(a2,99).
doAt(endflow,100).
compAt(a3,x3,4).
leftrightnexts(13,16).
leftrightnexts(31,34).
leftrightnexts(45,48).
leftrightnexts(26,37).
leftrightnexts(56,59).
leftrightnexts(25,51).
leftrightnexts(71,74).
leftrightnexts(85,88).
leftrightnexts(66,77).
leftrightnexts(96,99).
leftrightnexts(65,91).
leftrightnexts(22,62).
leftrightnexts(7,19).