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(10,17).
next(17,18).
next(18,19).
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(24,30).
next(30,31).
next(31,32).
next(32,33).
next(33,34).
next(34,35).
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(39,44).
next(44,45).
next(45,46).
next(46,47).
next(18,48).
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(58,59).
next(53,60).
next(60,61).
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(70,75).
next(75,76).
next(76,77).
next(77,78).
doAt(startflow,6).
doAt(a2,8).
doAt(a12,10).
doAt(a4,13).
doAt(a19,14).
doAt(endflow,15).
doAt(a15,18).
doAt(a22,20).
doAt(a23,21).
doAt(a17,22).
doAt(a1,23).
doAt(a9,24).
doAt(a8,25).
doAt(a19,26).
doAt(endflow,28).
doAt(a6,30).
doAt(a11,31).
doAt(a21,33).
doAt(a20,34).
doAt(a13,35).
doAt(a10,36).
doAt(a24,37).
doAt(a5,38).
doAt(a18,39).
doAt(a3,40).
doAt(a19,41).
doAt(endflow,42).
doAt(a16,44).
doAt(a19,45).
doAt(endflow,46).
doAt(a25,48).
doAt(a14,49).
doAt(a23,50).
doAt(a17,51).
doAt(a1,52).
doAt(a9,53).
doAt(a8,54).
doAt(a19,55).
doAt(endflow,58).
doAt(a6,60).
doAt(a11,61).
doAt(a21,63).
doAt(a20,64).
doAt(a13,65).
doAt(a10,66).
doAt(a24,67).
doAt(a5,69).
doAt(a18,70).
doAt(a3,71).
doAt(a19,72).
doAt(endflow,73).
doAt(a16,75).
doAt(a19,76).
doAt(endflow,77).
compAt(a4,x20,9).
compAt(a4,x24,12).
compAt(a19,x10,17).
compAt(a4,x24,19).
compAt(a4,x5,27).
compAt(a4,x5,32).
compAt(a4,x5,56).
compAt(a4,x24,57).
compAt(a4,x5,62).
compAt(a4,x24,68).
subsAt(a2,7).
subsAt(a4,11).
leftrightnexts(40,44).
leftrightnexts(25,30).
leftrightnexts(71,75).
leftrightnexts(54,60).
leftrightnexts(19,48).
leftrightnexts(11,17).