diff --git "a/khj20006/202511/11 BOJ P2 \354\225\204\354\235\270\355\203\200 \352\262\214\354\236\204.md" "b/khj20006/202511/11 BOJ P2 \354\225\204\354\235\270\355\203\200 \352\262\214\354\236\204.md"
new file mode 100644
index 00000000..6cbd5aab
--- /dev/null
+++ "b/khj20006/202511/11 BOJ P2 \354\225\204\354\235\270\355\203\200 \352\262\214\354\236\204.md"	
@@ -0,0 +1,23 @@
+```cpp
+#include <bits/stdc++.h>
+using namespace std;
+
+int main() {
+	cin.tie(0)->sync_with_stdio(0);
+
+	long long T, N, M, K;
+	for (cin >> T; T--;) {
+		cin >> K >> N >> M;
+		N--, M--;
+		if (K == 1) {
+			cout << (((N & 1LL) | (M & 1LL)) ? "koosaga\n" : "cubelover\n");
+			continue;
+		}
+		long long z = min(N, M) / (K + 1), zz = z * (K + 1);
+		N -= zz, M -= zz;
+		long long g = (N < K || M < K) ?  ((N & 1LL) ^ (M & 1LL) ^ (z & 1LL)) : (((N & 1LL) ^ (M & 1LL)) | 2LL);
+		cout << (g ? "koosaga\n" : "cubelover\n");
+	}
+
+}
+```