Rules Change

Due to  a hole in the  test suite,  we had to loosen a rule  in order not to
have to disqualify any entry. The rule

^Z  means EOF  (end of file) for  console  input and is an invalid character
for redirected input, the Brainfuck source file and the output.

was replaced by:

^Z means EOF (end of file) for console input. Your entry has to handle stdin
input  like  DOS function 3Fh. That means that  you do NOT have to check for
non-terminal ^Z in keyboard input.

Sorry for the inconvenience.
