1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
#include <map>
#include <set>
#include <list>
#include <cmath>
#include <ctime>
#include <deque>
#include <queue>
#include <stack>
#include <string>
#include <bitset>
#include <cstdio>
#include <limits>
#include <vector>
#include <climits>
#include <cstring>
#include <tuple>
#include <cstdlib>
#include <fstream>
#include <numeric>
#include <sstream>
#include <iostream>
#include <algorithm>
#include <unordered_map>
#include <unordered_set>

using namespace std;








int main() {
	/*ifstream cin("input.txt");
	ofstream cout("output.txt");*/
	int n, t;
	cin >> n >> t;
	n = pow(2, n);
	vector <int> a(n);
	for (int i = 0; i < n; i++)
	{
		cin >> a[i];
	}
	if (t % 2 == 1)
	{
		reverse(a.begin(), a.end());
	}
	for (int x : a)
	{
		cout << x << " ";
	}
}