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
#include<bits/stdc++.h>
#define ll long long
#define boost ios_base::sync_with_stdio(false);cin.tie(0);cout.precision(20);
#define inf 1000000000
#define INF 1000000000000000000LL
#define mod 1000000007
#define VI vector<int>
#define PII pair<int, int>
#define st first
#define nd second
#define pb push_back
#define mp make_pair
#define endl '\n'
#define REP(x, y) for(int x = 0; x < (y); ++x)
#define FOR(x, y, z) for(int x = y; x <= (z); ++x)
#define FORR(x, y, z) for(int x = y; x >= (z); --x)
using namespace std;

int tab[2500007];

int main()
{
	boost
	int n,t;
	cin >> n >> t;

	int k=1<<n;

	FOR(i,1,k)
	{
		cin >> tab[i];
	}

	if (t%2==1)
		FORR(i,k,1)
	cout << tab[i] << " ";
	else
		FOR(i,1,k)
	cout << tab[i] << " ";

    return 0;
}