From 46e0ec434d7069f22a44762d626fd22b499e3d6a Mon Sep 17 00:00:00 2001
From: problsolv <stchung4@gmail.com>
Date: Sat, 22 Nov 2025 22:01:30 -0600
Subject: [PATCH] Update exam/packet.tex

---
 exam/packet.tex | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/exam/packet.tex b/exam/packet.tex
index c2d415d..f5a198e 100644
--- a/exam/packet.tex
+++ b/exam/packet.tex
@@ -142,8 +142,8 @@ Output:
 \end{verbatim}
 
 % ========================= Problem 4 =========================
-\problem{Problem 3: Merge Intervals}
-\textit{Difficulty: Hard}
+\problem{Problem 4: Six Seven}
+\textit{Difficulty: Easy}
 \begin{itemize}
 You are given a string S composed of only the characters ‘6', ‘7’, ‘A', ‘B', and ‘\#' (without the quotation marks). This string is processed from left to right, and you must maintain a sequence of chracters that changes according to these rules: