use proconio::input;
fn main() {
    input! { mut n: usize }
    let c = n / 720;
    n %= 720;
    let m = n / 360;
    n %= 360;
    let s = n / 180;
    n %= 180;
    let r = n / 30;
    n %= 30;
    let o = n / 6;
    n %= 6;
    let mut res = String::new();
    for _ in 0..c { res.push('C'); }
    for _ in 0..m { res.push('M'); }
    for _ in 0..s { res.push('S'); }
    for _ in 0..r { res.push('R'); }
    for _ in 0..o { res.push('o'); }
    for _ in 0..n { res.push('.'); }
    println!("{res}");
}