#!/usr/bin/perl
# copyright 2002 yenar@host.sk
# covered by GNU LGPL

my $in;

while (<STDIN>) {
	$in .= $_;
}

$_ = $in;

s!(\#if 0\n).*?(\#else /\* \!0 \*/\n)!!gsm;
s!(\#if 0\n).*?(\#endif /\* 0 \*/\n)!!gsm;
s#//.*?$# #gsm;
s#/\*.*?\*/# #gsm;
s#^[ \t]*\n##gsm;

print $_;