Computer Programming Contest Preparation

    1 4
    2 -1 -2 -3 -4
    3 -5 -6 -7 -8
    4 -9 -10 -11 -12
    5 -13 -14 -15 -16
    6 5
    7 1 -61 5126 612 6
    8 41 6 7 2 -7
    9 1 73 -62 678 1
   10 7 -616136 61 -83 724
   11 -151 6247 872 2517 8135
   12 4
   13 0 -2 -7 0
   14 9 2 -6 2
   15 -4 1 -4  1
   16 -1 8  0 -2
   17