diff --git a/exam/packet.pdf b/exam/packet.pdf
index bc44ebb..68b0170 100644
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diff --git a/exam/packet.tex b/exam/packet.tex
index 16b3ea4..c141eee 100644
--- a/exam/packet.tex
+++ b/exam/packet.tex
@@ -141,7 +141,7 @@ Output:
 15 18
 \end{verbatim}
 \end{comment}
-% ========================= Problem 4 =========================
+% ========================= Problem 6 =========================
 \problem{Problem 6(.7): Six Seven}
 \textit{Difficulty: Easy}
 \begin{itemize}
diff --git a/packet.pdf b/packet.pdf
new file mode 100644
index 0000000..1f1ef45
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