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+# FAQ JOJ3
+
+
+**Q: my program exits with a "weird" error status and a number. What does it mean?**
+
+A: A working program should return with status (or code) 0. If something unexpected is happening JOJ or teh OS might be sending a *signal* to your program. To understand what went wrong, run the following comment `kill -L`. It lists all the signal names in a table. Check the name of the signal corresponding to the number you see in your Gitea issue and run a quick online search. 
+
+**Q: I found a bug, what should I do?**
+
+A: First make sure this is really a big, then open an issue in course-support to report it. We will come back to you for more details if necessary.
+
+**Q: JOJ3 looks very exciting, how can I contribute?**
+
+A: Refer to the contributing section of the [Introduction to JOJ3](Introduction-to-JOJ3#contributing).
+