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(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(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(43,44).
next(44,45).
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(58,59).
next(59,60).
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).
doAt(startflow,20).
doAt(a16,24).
doAt(a14,26).
doAt(a6,36).
doAt(a25,38).
doAt(a10,41).
doAt(a24,44).
doAt(a13,48).
doAt(a20,51).
doAt(a17,52).
doAt(a11,53).
doAt(a12,56).
doAt(a22,57).
doAt(a3,58).
doAt(a19,60).
doAt(a8,61).
doAt(a4,63).
doAt(a5,65).
doAt(a18,66).
doAt(a1,67).
doAt(a23,68).
doAt(a7,69).
doAt(a9,70).
doAt(a15,71).
doAt(a2,72).
doAt(endflow,73).
compAt(a24,x11,21).
compAt(a10,x11,22).
compAt(a19,x14,23).
compAt(a8,x20,25).
compAt(a18,x22,28).
compAt(a12,x22,29).
compAt(a25,x22,30).
compAt(a4,x1,31).
compAt(a22,x1,32).
compAt(a13,x1,33).
compAt(a22,x18,34).
compAt(a12,x18,35).
compAt(a10,x19,37).
compAt(a19,x21,39).
compAt(a4,x10,40).
compAt(a18,x22,42).
compAt(a12,x22,43).
compAt(a5,x13,46).
compAt(a5,x17,47).
compAt(a8,x25,50).
compAt(a5,x8,54).
compAt(a22,x8,55).
compAt(a4,x23,62).
subsAt(a6,27).
subsAt(a13,45).
subsAt(a20,49).
subsAt(a19,59).
subsAt(a5,64).