Computer Programming Contest Preparation

    1 17
    2 2 2 3
    3 2 4 5
    4 1 11
    5 1 13
    6 1 3
    7 1 7
    8 2 8 9
    9 1 5
   10 2 10 11
   11 1 16
   12 1 10
   13 2 13 14
   14 1 15
   15 1 16
   16 1 8
   17 1 17
   18 0
   19 4
   20 0
   21 1 1
   22 1 1
   23 2 2 3
   24 7
   25 1 2
   26 2 5 4
   27 0
   28 1 3
   29 0
   30 1 7
   31 1 3
   32 8
   33 2 2 3
   34 1 5
   35 1 5
   36 1 1
   37 0
   38 3 1 7 8
   39 0
   40 0
   41 0
   42