fn main() {
    let mut cc: Vec<char> = {
        let mut line = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        line.trim().chars().collect()
    };
    cc.reverse();

    let n = cc.len();

    let mut counts = [0_u32; 8];

    for i in (0..n).step_by(3) {
        let mut val = cc[i].to_digit(16).unwrap();
        if i + 1 < n {
            val += 16 * (cc[i + 1]).to_digit(16).unwrap();
        }
        if i + 2 < n {
            val += 256 * (cc[i + 2]).to_digit(16).unwrap();
        }

        for _ in 0..4 {
            counts[(val % 8) as usize] += 1;
            val /= 8;

            if val == 0 && i + 3 >= n {
                break;
            }
        }
    }

    let max = *counts.iter().max().unwrap();
    let mut max_indexes = vec![];

    for (i, &cnt) in counts.iter().enumerate() {
        if cnt == max {
            max_indexes.push(i);
        }
    }

    print!("{}", max_indexes[0]);
    for &idx in max_indexes.iter().skip(1) {
        print!(" {}", idx);
    }
    println!();
}