#!/usr/bin/ruby

newFile = ""
pattern = /(span\-|append\-|prepend\-|push\-|pull\-)(\d+)/
STDIN.each_line do |line|

	if (matchData = line.scan(pattern))
		matchData.each do |match|
			number = match[1].to_i * 2
			line.sub!(match[0]+match[1], match[0] + number.to_s)
		end
		puts line
	else
		puts line
	end
end