fun readLargeInt () =
    valOf (TextIO.scanStream (LargeInt.scan StringCvt.DEC) TextIO.stdIn)


fun largeIntString n =
    if 0 <= n
    then LargeInt.toString n
    else "-" ^ LargeInt.toString (abs n)


val () =
    let
        val a = readLargeInt ()
        val b = readLargeInt ()
        val c = readLargeInt ()
        val d = readLargeInt ()

        val n = a * c - b * d
        val m = b * c + a * d
    in
        print (largeIntString n ^ " " ^ largeIntString m ^ "\n")
    end