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

fn main() {
    let mut buf = String::new();
    stdin().read_to_string(&mut buf).unwrap();
    let mut buf = buf.split_whitespace();
    let mut get = || buf.next().unwrap().parse::<i32>().unwrap();
    
    let n = get() as usize;
    let m = get() as usize;
    let mut xs = vec![];
    for _ in 0..n { xs.push(get()); }
    
    let mut v = 0;
    for i in 0..m {
        v ^= xs[i];
    }
    for j in 0..n {
        for i in m..n {
            let i = i + (i + j) % 7;
            if i >= n { break; }
            let e = v ^ xs[j] ^ xs[i];
            if e > v {
                xs.swap(i, j);
                v = e;
                break;
            }
        }
    }
    for i in 0..m {
        if i > 0 { print!(" "); }
        print!("{}", xs[i]);
    }
    println!();
    
}