How would you write a "corpus" in French Baccalaureate?

You read the 3 or 4 text given to you a couple if not three times, you identify the things that these texts have in common and the things that distinguish them on a draft paper. Once you have done this, you must start writing your answer with a short introductory paragraph with the names of each text and a very brief summary of them. A second paragraph must contain all the similarities between these texts and a thrird one must contain their differences. Finally, a brief conclusion paragraph must end the task. You must not take over than an hour to complete this task as you envaribly have a dissertation or commentary to complete in the remaining time and will need at least 3 hours for this.