#!/usr/bin/perl
  #
  # Take a piece of C code and for each line which contains the sequence $$
  # repeat n times with $ replaced by 0...n-1; the sequence $# is replaced
  # by the unrolling factor, and $* with a single $
  #
  
  ($n) = @ARGV;
  $n += 0;
  
  while ( defined($line = <STDIN>) ) {
      if ( $line =~ /\$\$/ ) {
  	$rep = $n;
      } else {
  	$rep = 1;
      }
      for ( $i = 0 ; $i < $rep ; $i++ ) {
  	$tmp = $line;
  	$tmp =~ s/\$\$/$i/g;
  	$tmp =~ s/\$\#/$n/g;
  	$tmp =~ s/\$\*/\$/g;
  	print $tmp;
      }
  }