template_groups.tex:
This is the main template. Here, some frequently used mathematical symbols are defined.
Additional commands should be defined in your own group file (groupX.tex)
Your need to adjust the input filename for your main document (\input{groupX.tex} in line 75)

groupX.tex:
This is the main file for your report. Please rename it accordingly (e.g. group07.tex)
Subsections can be created following the example files given (See introduction_groupX.tex)