Revert "alien dart"
Revert "alien dart"

This reverts commit d0f75dbe94926a9b5e8c2edbf4a975ac8a05d0df.

Nearsoft/google-code-jam,Nearsoft/google-code-jam,Nearsoft/google-code-jam,Nearsoft/google-code-jam,Nearsoft/google-code-jam,Nearsoft/google-code-jam,Nearsoft/google-code-jam