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  • 12-7
    5
  • 14+5
    19
  • 13-2
    11
  • 2+3
    5
  • 15+1
    16
  • 2+9
    11
  • 17-13
    4
  • 6+5
    11
  • 3+16
    19
  • 19-4
    15
  • 6+8
    14
  • 3+8
    11
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