fn main() {
    let mut temp = String::new();
    std::io::stdin().read_line(&mut temp).ok();
    let temp = temp.trim().chars().rev().enumerate().map(|(i, c)| (c as usize - 'A' as usize + 10) * (1 << (i%3))).collect::<Vec<_>>();

    let mut rest = 0usize;
    let mut cnts = vec![0usize; 8];
    for i in 0..temp.len() {
        let val = temp[i] + rest;
        cnts[val%8] += 1;
        if i % 3 == 2 {
            cnts[val/8] += 1;
            rest = 0;
        } else {
            rest = val / 8;
        }
    }
    if rest > 0 { cnts[rest] += 1; }
    let maxval = *cnts.iter().max().unwrap();
    let result = (0..8).filter(|&i| cnts[i] == maxval).map(|v| v.to_string()).collect::<Vec<_>>().join(" ");
    println!("{}", result);
}