Advent of Code

      /*2015*/

                        *                          25 **
                       >o<                         24 **
                      >O<<<                        23 **
                     >>@<<@<                       22 **
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                 >O>>O<<<@>>>O<<                   18 **
                >O>@<<<o>>>*>O<<<                  17 **
               >*>o<<O<<@>*>>>O<<<                 16 **
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