Testing Python syntax fixes...
Checking syntax of input/file1.py...
  File "input/file1.py", line 1
    def hello_world()
                     ^
SyntaxError: expected ':'
✗ input/file1.py: Syntax ERROR
Checking syntax of input/file2.py...
  File "input/file2.py", line 6
    numbers = [1, 2, 3, 4, 5
              ^
SyntaxError: '[' was never closed
✗ input/file2.py: Syntax ERROR
Checking syntax of input/file3.py...
✓ input/file3.py: Syntax OK
Checking syntax of input/file4.py...
  File "input/file4.py", line 12
    print("Original:", data
         ^
SyntaxError: '(' was never closed
✗ input/file4.py: Syntax ERROR
Checking syntax of input/file5.py...
  File "input/file5.py", line 23
    print("Configuration saved and loaded successfully!"
         ^
SyntaxError: '(' was never closed
✗ input/file5.py: Syntax ERROR

Summary:
Total files checked: 5
Files with syntax errors: 4
FAILURE: 4 file(s) still have syntax errors