diff --git a/level4/Ressources/walkthrough.md b/level4/Ressources/walkthrough.md
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+It's the same as level3, we just need to use the width indicator for one of the
+%x to input a large number.
diff --git a/level5/Ressources/walkthrough.md b/level5/Ressources/walkthrough.md
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+Same principle, but this time we will override the GOT to jump on a function we want to execute, because there is no variable comparaison to launch a shell like the 2 last example.