Y, M, D = gets.split.map(&:to_i)

if Y >= 1990 && Y <= 2018
    puts "YES"
elsif Y == 1989 && M >= 2
    puts "YES"
elsif Y == 1989 && M == 1 && D <= 8
    puts "YES"
elsif Y == 2019 && M <= 3
    puts "YES"
elsif Y == 2019 && M == 4 && D <= 30
    puts "YES"
else
    puts "NO"
end