puts 'Why are we in lockdown 6.0?'
text = gets.chomp
words = text.split
frequencies = Hash.new(0)
words.each do |word|
  frequencies[word] += 1
end
frequencies = frequencies.sort_by do |_word, count|
  count
end
frequencies.reverse!

frequencies.each do |word, count|
#   puts word + ' ' + count.to_s
  puts "#{word} #{count}"
end