number     quiz    mid1    mid2    final   total
  9731221   41.75      43      43       0   33.90   33.90
101031202   46.00      39      35      19   37.00   37.00
101031223   24.00      54      42      19   32.60   32.60
  k(0) k(1) k(2) k(3) k(4) k(5) k(6) k(7) k(8) k(9)
    5    4    2    3   13   29   36   22    9    0