n = gets.to_i
if n >= 1800
  puts '1'
elsif n >= 1600
  puts '2'
elsif n >= 1400
  puts '3'
elsif n >= 1200
  puts '4'
elsif n >= 1000
  puts '5'
elsif n >= 800
  puts '6'
elsif n >= 600
  puts '7'
else
  puts '8'
end