Computer Programming Contest Preparation

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    2 68 76 64
    3 50 22 59
    4 29 98 73
    5 93 39 97
    6 23 30 22
    7 28 67 94
    8 69 76 99
    9 80 0 7
   10 94 10 85
   11 7 3 48
   12 12 23 24
   13 76 73 98
   14 87 3 96
   15 60 48 35
   16 57 24 66
   17 32 4 85
   18 26 73 61
   19 25 5 13
   20 84 0 76
   21 21 7 79
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