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


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

        val ans = if a + b = a * b then "E"
                  else if a + b > a * b then "S"
                  else "P"
    in
        print (ans ^ "\n")
    end