ans = []
w_counts = []
index = 0

w_start_flag = false
gets.chomp.split('').each do |e|
  if e == 'ｗ'
    w_start_flag = true
    w_counts[index] ||= 0
    w_counts[index] += 1
  end
  if w_start_flag && e != 'ｗ'
    w_start_flag = false
    index += 1
  end
  ans[index] ||= ''
  ans[index] += e
end

ans.each_with_index do |e, i|
  e.gsub!(/ｗ/, '')
  next if e == ''
  puts e if w_counts[i] ==  w_counts.max
end