require 'pp'

x = gets.to_i

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