Warning: Undefined variable $f in /in/4Dp5I on line 2
Fatal error: Uncaught ValueError: Missing format specifier at end of string in /in/4Dp5I:2
Stack trace:
#0 /in/4Dp5I(2): printf('%2', '12.99')
#1 {main}
thrown in /in/4Dp5I on line 2
Process exited with code 255.