Finished a new problem

1323/main.py

+class Solution:
+    def maximum69Number (self, num):
+        new_num = ""
+        done = False
+        for c in str(num):
+            if c == "6" and not done:
+                new_num += "9"
+                done = True
+            else:
+                new_num += c
+          
+        return int(new_num)
+
+s = Solution()
+print("Expected: 9999")
+print("Got:", str(s.maximum69Number(9699)))

1323/problem.txt

+Given a positive integer num consisting only of digits 6 and 9.
+
+Return the maximum number you can get by changing at most one digit (6 becomes 9, and 9 becomes 6).

1323/run.sh

+#!/bin/bash
+
+python3 main.py