// #pragma GCC target("avx") // #pragma GCC optimize("O3") // #pragma GCC optimize("unroll-loops") #include <bits/stdc++.h> using namespace std; #define rep(i,n) for(int i = 0; i < (int)n; i++) #define FOR(n) for(int i = 0; i < (int)n; i++) #define repi(i,a,b) for(int i = (int)a; i < (int)b; i++) #define all(x) x.begin(),x.end() //#define mp make_pair #define vi vector<int> #define vvi vector<vi> #define vvvi vector<vvi> #define vvvvi vector<vvvi> #define pii pair<int,int> #define vpii vector<pair<int,int>> template<typename T> bool chmax(T &a, const T b) {if(a<b) {a=b; return true;} else {return false;}} template<typename T> bool chmin(T &a, const T b) {if(a>b) {a=b; return true;} else {return false;}} using ll = long long; using ld = long double; using ull = unsigned long long; const ll INF = numeric_limits<long long>::max() / 2; const ld pi = 3.1415926535897932384626433832795028; const ll mod = 998244353; int dx[] = {1, 0, -1, 0, -1, -1, 1, 1}; int dy[] = {0, 1, 0, -1, -1, 1, -1, 1}; #define int long long void solve() { int n, m; cin >> n >> m; vvi a(1<<n, vi(1<<m)); int cnt = 0; rep(i, 1<<n) rep(j, 1<<m) cout << (a[i][j] = cnt++) << " \n"[j == (1<<m)-1]; // rep(i, 1<<n) repi(j, i+1, 1<<n) rep(k, 1<<m) repi(l, k+1, 1<<m) { // assert((a[i][k]^a[i][l]^a[j][k]^a[j][l]) == 0); // } } signed main() { cin.tie(nullptr); ios::sync_with_stdio(false); solve(); return 0; }