diff --git a/AcWing/749/749.cpp b/AcWing/749/749.cpp
new file mode 100644
index 00000000..4838fcf5
--- /dev/null
+++ b/AcWing/749/749.cpp
@@ -0,0 +1,18 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    char op;
+    cin >> op;
+    double x, sum = 0;
+    for (int i = 0; i < 12; i++) {
+        for (int j = 0; j < 12; j++) {
+            cin >> x;
+            if (i < 5 && j > i && j <= 10 - i) sum += x;
+        }
+    }
+    cout << fixed << setprecision(1) << sum / (op == 'S' ? 1 : 30) << endl;
+
+    return 0;
+}
diff --git a/AcWing/749/data/6.ans b/AcWing/749/data/6.ans
new file mode 100644
index 00000000..20aec44e
--- /dev/null
+++ b/AcWing/749/data/6.ans
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b7b5c2de48db399c7aaa2007f204df2a5650d22ea31b6be9458409f96b3a517b
+size 5
diff --git a/AcWing/749/data/6.in b/AcWing/749/data/6.in
new file mode 100644
index 00000000..5465fb9f
--- /dev/null
+++ b/AcWing/749/data/6.in
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c9d35da19bbb4f2230e7e094d5bf317b6b4313a0f4abe8d12cf2b16de65f293b
+size 661