fun main(args : Array<String>) {
    val Y = "Yes"
    val N = "No"

    var (y,m,d)=readLine()!!.split(" ").map(String::toInt)

    val ans = when{
        y == 1989 && 1 <= m  && 8 <= d-> {
            Y
        }
        y == 2019 && m <= 4  && d <= 30 -> {
            Y
        }
        (y in 1990..2018) -> Y
        else -> N
    }

    println(ans)
}