text = gets.chomp
# text = "ｗｗｗｗｗｗ"

text = text.gsub(/^[ｗ]+/, "")



w_array = text.scan(/[ｗ]+/)

if text == "" or w_array.length == 0
    p ""
    return 0
end


max_w = w_array.sort_by(&:length).last.length



for word in text.scan(/[^ｗ]+[ｗ]{#{max_w}}/)
    p word.gsub(/[ｗ]+/, "")

end