fun readInt () =
    valOf (TextIO.scanStream (Int.scan StringCvt.DEC) TextIO.stdIn)


val () =
    let
        val h = readInt ()
        val m = readInt ()

        val wakeUpTime = h * 60 + 30

        val startTime = 7 * 60 + 30
        val endTime = 8 * 60 + 30

        val ans = if wakeUpTime < startTime then "Yes"
                  else if wakeUpTime < endTime then "Late"
                  else "No"
    in
        print (ans ^ "\n")
    end