diff --git a/ai_fix.py b/ai_fix.py
new file mode 100644
index 00000000..9092c33b
--- /dev/null
+++ b/ai_fix.py
@@ -0,0 +1,25 @@
+# AI Fix #546
+Fix ISO control numbers interpretation
+```diff
+--- a/iso_parser.py
++++ b/iso_parser.py
+@@ -10,7 +10,7 @@
+ # Parse ISO control numbers
+ def parse_iso_control_numbers(numbers):
+-    return [float(num) for num in numbers]
++    return [str(num) for num in numbers]
+
+ # Example usage:
+@@ -20,5 +20,5 @@
+ def main():
+     numbers = ["7.1", "7.10", "8.1", "8.10"]
+-    parsed_numbers = [float(num) for num in numbers]
++    parsed_numbers = parse_iso_control_numbers(numbers)
+     print(parsed_numbers)
+
+-if __name__ == "__main__":
+-    main()
+\ No newline at end of file
++if __name__ == "__main__":
++    main()
+```
\ No newline at end of file