use std::io::{stdin, BufRead};

fn main() {
    let stdin = stdin();
    let mut stdin = stdin.lock().lines().map(Result::unwrap);
    let _n = stdin.next().unwrap().parse::<usize>().unwrap();
    let a = stdin
        .next()
        .unwrap()
        .split_whitespace()
        .map(|x| x.parse::<usize>().unwrap())
        .collect::<Vec<_>>();
    let mut basis = Vec::new();
    for &(mut x) in &a {
        for &b in &basis {
            x = x.min(x ^ b);
        }
        if x != 0 {
            basis.push(x);
        }
    }
    let ans = 1 << basis.len();
    println!("{}", ans);
}