input = gets()
x = input.chomp.to_i

# input = readlines()
# meta = input.shift.chomp.split("\s").map{|x| x.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
