diff --git a/InSange/README.md b/InSange/README.md
index a494ef3..b510896 100644
--- a/InSange/README.md
+++ b/InSange/README.md
@@ -7,6 +7,7 @@
 | 3차시 | 2024.03.19 |  플로이드 워셜  | [앱](https://www.acmicpc.net/problem/7579)  | [#3](https://github.com/AlgoLeadMe/AlgoLeadMe-8/pull/9) |
 | 4차시 | 2024.03.25 |  다익스트라  | [파티](https://www.acmicpc.net/problem/1238)  | [#4](https://github.com/AlgoLeadMe/AlgoLeadMe-8/pull/15)|
 | 5차시 | 2024.03.27 |  DP  | [RGB거리2](https://www.acmicpc.net/problem/17404)  | [#5](https://github.com/AlgoLeadMe/AlgoLeadMe-8/pull/19)]
-| 6차시 | 2024.04.01 |  최소신장트리  | [행성 터널](https://www.acmicpc.net/problem/2887)  | [#6](https://github.com/AlgoLeadMe/AlgoLeadMe-8/pull/19)]
+| 6차시 | 2024.04.01 |  최소신장트리  | [행성 터널](https://www.acmicpc.net/problem/2887)  | [#6](https://github.com/AlgoLeadMe/AlgoLeadMe-8/pull/24)]
+| 7차시 | 2024.04.04 |  스택  | [문자열 폭발](https://www.acmicpc.net/problem/9935)  | [#7](https://github.com/AlgoLeadMe/AlgoLeadMe-8/pull/19)]
 =======
 ---
diff --git "a/InSange/\354\212\244\355\203\235/9935.cpp" "b/InSange/\354\212\244\355\203\235/9935.cpp"
new file mode 100644
index 0000000..1a8b973
--- /dev/null
+++ "b/InSange/\354\212\244\355\203\235/9935.cpp"
@@ -0,0 +1,54 @@
+#include <iostream>
+
+using namespace std;
+
+string s, boom;
+int blen;
+
+void Solve()
+{
+	cin >> s >> boom;
+
+	blen = boom.length();
+	
+	string st = "";
+	for (char c : s)
+	{
+		st.push_back(c);
+
+		if (c == boom[blen-1] && st.size() >= blen)
+		{
+			bool flag = true;
+
+			for (int i = 0; i < blen; i++)
+			{
+				if (boom[i] != st[st.length() - blen + i])
+				{
+					flag = false;
+					break;
+				}
+			}
+
+			if (flag)
+			{
+				for (int i = 0; i < blen; i++)
+				{
+					st.pop_back();
+				}
+			}
+		}
+	}
+
+	if (st == "") cout << "FRULA";
+	else cout << st;
+}
+
+int main()
+{
+	cin.tie(nullptr);
+	ios::sync_with_stdio(false);
+
+	Solve();
+
+	return 0;
+}
\ No newline at end of file