fn main() {
    let mut ab = String::new();
    std::io::stdin().read_line(&mut ab).ok();
    let ab: Vec<&str> = ab.trim().split_whitespace().collect();
    let a = ab[0];
    let b = ab[1];

    if a == b {
        println!("E");
    } else if a == "0" || b == "0" || a == "1" || b == "1" {
        println!("S");
    } else {
        println!("P");
    }
}