My homepage: http://rajo.platon.sk perl -e '$x=sub{$s=0;map{$s+=$_}@_;$s%17};@_[1]=11;@==map{84+($z++%2?shift @_:18)}qw<P E R L>;print map{chr&$x(map{ord}split//)+shift(@=)}sort qw"Who is Perl guru?"'