while text = STDIN.gets
  text.chomp!
  while true 
    if text.include?("the") or text.include?("this") or text.include?("that") then
      puts text
      break
    end
    text = text.chars.map { |item| if item.match(/[a-yA-Y]/) then (item.ord+1).chr elsif item == "z" then "a" elsif item == "Z" then "A" else item end }.join("")
  end
end