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


val () =
    let
        val a = readInt ()
        val b = readInt ()

        val ans = if 2 * a < b orelse 2 * b < a then "No"
                  else "Yes"
    in
        print (ans ^ "\n")
    end