y,m,d = gets.split.map(&:to_i)

if y >= 1990 && y <= 2018
  puts "YES"
elsif y == 1989
  if m >= 2
    puts "YES"
  elsif m == 1 && d >= 8
    puts "YES"
  else
    puts "NO"
  end
elsif y == 2019
  if m <= 3
    puts "YES"
  elsif m == 4 && d <= 30
    puts "YES"
  else
    puts "NO"
  end
else
  puts "NO"
end