ymd = gets.split.map(&:to_i)
y = ymd[0]
m = ymd[1]
d = ymd[2]

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