# coding: utf-8
text = gets.chomp
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