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What's the next number?

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  • 83, 80, ............
    77
  • 65, 60, ...........
    55
  • 23, 20, .............
    17
  • 37, 47, ................
    57
  • 59, 55,...................
    51
  • 44, 46, ..............
    48
  • 50, 40, ...................
    30
  • 19, 29, ...............
    39
  • 34, 38................
    42
  • 1,3,................
    5
  • 10, 12, ....................
    14
  • 88, 86, ..................
    84
  • 70, 73, ..............
    76
  • 11, 9,..............
    7
  • 70, 65, ...................
    60
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