Computer Programming Contest Preparation

    1 2
    2 
    3 1 2 10 I
    4 3 1 11 C
    5 7 2 19 R
    6 1 2 21 C
    7 1 1 25 C
    8 1 2 50 I
    9 
   10 1 2 10 I
   11 3 1 11 C
   12 7 2 19 R
   13 1 2 21 C
   14 1 1 25 C
   15 1 2 50 I
   16 
   17