diff --git a/AcWing/773/773.cpp b/AcWing/773/773.cpp
new file mode 100644
index 00000000..973bff0d
--- /dev/null
+++ b/AcWing/773/773.cpp
@@ -0,0 +1,23 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+string s, s1;
+
+int main() {
+    while (cin >> s >> s1) {
+        bool flag = false;
+        char c = 'z';
+        while (!flag) {
+            if (s.find_first_of(c) != string::npos) {
+                s.insert(s.find_first_of(c) + 1, s1);
+                flag = true;
+                break;
+            }
+            c--;
+        }
+        cout << s << endl;
+    }
+
+    return 0;
+}