let (|Pl|Mu|Eq|) (a,b) =
    match a, b with
    | "0", "0" | "2", "2" -> 
        Eq
    | "1",  _  |  _ , "1"
    | "0",  _  |  _ , "0" -> 
        Pl
    | _ -> 
        Mu           
        
let A, B = 
    let t = stdin.ReadLine().Split()
    t.[0], t.[1]
    
(A,B)
|> function
    | Pl -> "S" // Sum
    | Eq -> "E"
    | Mu -> "P" // Product
|> printfn "%s"