diff --git a/leetcode1322.cpp b/leetcode1322.cpp
new file mode 100644
index 0000000..4b2a4be
--- /dev/null
+++ b/leetcode1322.cpp
@@ -0,0 +1,23 @@
+#include <iostream>
+#include <string>
+using namespace std;
+
+int main() {
+    int num;
+    cout << "Enter a number (only digits 6 and 9): ";
+    cin >> num;
+
+    string s = to_string(num);
+
+    for (char &c : s) {
+        if (c == '6') {   
+            c = '9';
+            break;
+        }
+    }
+
+    int result = stoi(s);
+    cout << "Maximum number after change: " << result << endl;
+
+    return 0;
+}