#include <iostream>
#include <vector>

using namespace std;


int main() {
    ios_base::sync_with_stdio(0);
    int n, t, w = 1;
    cin >> n >> t;
    for (int i = 0; i < n; ++i) {
        w *= 2;
    }
    vector<int> tab(w, 0);
    for (int i = 0; i < w; ++i){
        cin >> tab[i];
        if (t % 2 == 0) {
            cout << tab[i] << " ";
        }
    }
    if (t % 2 == 1) {
        for (int i = w - 1; i >= 0; --i) {
            cout << tab[i] << " ";
        }
    }


}