use std::collections::{HashMap, HashSet};

fn main() {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    let s: Vec<char> = s.trim().chars().collect();

    let mut strings = HashMap::new();
    strings.insert(s.clone(), HashSet::<Vec<char>>::new());
    strings.entry(s).or_default().insert(vec![]);

    while !strings.keys().next().unwrap().is_empty() {
        let mut new_strings: HashMap<Vec<char>, HashSet<Vec<char>>> = HashMap::new();

        for (rem, gen) in &strings {
            for s in gen {
                let mut new_s_left = s.clone();
                new_s_left.push(rem[0]);
                new_strings
                    .entry(rem[1..].to_vec())
                    .or_default()
                    .insert(new_s_left);

                let mut new_s_right = s.clone();
                new_s_right.push(rem[rem.len() - 1]);
                new_strings
                    .entry(rem[..rem.len() - 1].to_vec())
                    .or_default()
                    .insert(new_s_right);
            }
        }

        strings = new_strings;
    }

    println!("{}", strings.values().next().unwrap().len());
}