Y,M,D = gets.split(" ").map!{|i| i.to_i}


if Y > 1990 && Y < 2019   then
   puts "YES"

elsif (Y == 1989 && M > 1 ) then
  puts "Yes"
elsif (Y == 1989 && M == 1 && D >= 8) then
  puts "Yes"
elsif (Y == 2019 && M < 4) then
  puts "Yes"
elsif (Y == 2019 && M == 4 && D <= 30) then
  puts "Yes"
else
  puts "No"
end