日付の連番がほしかった

require 'rubygems'
require 'activesupport'
tomorrow = Time.now
after_week = tomorrow.advance :days => 7

             puts "#{ tomorrow.strftime "%Y%m%d"},#{after_week.strftime "%Y%m%d"}"
(1..300).each{|x|
           tomorrow = tomorrow.advance(:weeks=>x)
           after_week = after_week.advance(:weeks=>x)

           puts "#{ tomorrow.strftime "%Y%m%d"},#{after_week.strftime "%Y%m%d"}"

}