# frozen_string_literal: true

x = gets.to_i

score =  if x >= 1800
      1
elsif x >= 1600
  2
elsif x >= 1400
  3
elsif x >= 1200
  4
elsif x >= 1000
  5
elsif x >= 800
  6
elsif x >= 600
  7
elsif x >= 400
  8
end

puts score
