#include <iostream>
#include <vector>
int main() {
	std::ios_base::sync_with_stdio(false);
	int n, t;
    std::cin >> n >> t;
    if (t & 1) {
		std::vector<int> v(1 << n);
		for (auto&& a : v) {
			std::cin >> a;
		}
		for (auto it = v.rbegin(), last = v.rend(); it != last; ++it) {
			std::cout << *it << ' ';
		}
    } else {
		for (int i = 1 << n; i--;) {
			int a;
			std::cin >> a;
			std::cout << a << ' ';
		}
    }
    return 0;
}
        | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | #include <iostream> #include <vector> int main() { std::ios_base::sync_with_stdio(false); int n, t; std::cin >> n >> t; if (t & 1) { std::vector<int> v(1 << n); for (auto&& a : v) { std::cin >> a; } for (auto it = v.rbegin(), last = v.rend(); it != last; ++it) { std::cout << *it << ' '; } } else { for (int i = 1 << n; i--;) { int a; std::cin >> a; std::cout << a << ' '; } } return 0; } | 
 
            
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