defmodule Main do

    def is_heisei(y, m, d) do
        x = y * 10000 + m * 100 + d
        x >= 19890108 && x <= 20190430
    end

    def solve(y, m, d) do
        case is_heisei(y, m, d) do
            true -> "Yes"
            _ -> "No"
        end
    end


    def main do
        [y, m, d] = IO.gets("") |> String.trim |> String.split |> Enum.map(&String.to_integer/1)
        solve(y, m, d) |> IO.puts
    end
end