let inpt = readLine()!.split(separator: " ").map(String.init)
if(inpt[0] == "0" && inpt[1] == "0") {
    print("E")
} else if(inpt.contains("0") || inpt.contains("1")) {
    print("S")
} else if(inpt[0] == "2" && inpt[1] == "2") {
    print("E")
} else {
    print("P")
}