use proconio::input;

fn main() {
    input! {
        s: String,
    }

    let num_c = count_char(&s, 'C');
    let num_p = count_char(&s, 'P');
    let num_t = count_char(&s, 'T');

    if num_c == 0 {
        println!("{}{}", "P".repeat(num_p), "T".repeat(num_t))
    } else {
        println!(
            "{}{}{}",
            "T".repeat(num_t),
            "C".repeat(num_c),
            "P".repeat(num_p)
        )
    }
}

fn count_char(s: &str, ch: char) -> usize {
    s.chars().filter(|&c| c == ch).count()
}