a, b, c = gets.split.map(&:to_i)

if a.between?(1990, 2018)
  puts "Yes"
elsif a == 1989
  if b == 1
    puts c >=8 ? "Yes" : "No"
  else
    puts "Yes"
  end
elsif a == 2019
  puts b <= 4 ? "Yes" : "No"
else
  puts "No"
end