use proconio::input;

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

    let mut ans = String::new();
    let mut c = 0;

    c = s.chars().filter(|&c| c == 'C').count() as i32;
    if c == 0 {
        c = s.chars().filter(|&c| c == 'P').count() as i32;
        for _ in 0..c {
            ans += "P";
        }
        c = s.chars().filter(|&c| c == 'T').count() as i32;
        for _ in 0..c {
            ans += "T";
        }
    }
    else {
        c = s.chars().filter(|&c| c == 'T').count() as i32;
        for _ in 0..c {
            ans += "T";
        }
        c = s.chars().filter(|&c| c == 'C').count() as i32;
        for _ in 0..c {
            ans += "C";
        }
        c = s.chars().filter(|&c| c == 'P').count() as i32;
        for _ in 0..c {
            ans += "P";
        }        
    }

    println!("{}", ans);
}