math-3 | This user can contribute with advanced mathematical skills. |
| This user can program in Python. |
rb-0 | This person does not understand Ruby (or does not want to program in Ruby). |
C++ | This user can program in C++. |
C# | This user can program in C#. |
objc-0 | This person does not understand Objective-C (or understands it with considerable difficulties, or does not want to program in Objective-C). |
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