#include using namespace std; using ll = long long; #define rep(i, n) for (int i = 0; i < (int)(n); i++) void solve() { ll n, m; cin >> n >> m; ll h = 1, w = 1; rep(i, n) h *= 2; rep(i, m) w *= 2; ll now = 0; rep(i, h) { rep(j, w) { if (j) cout << ' '; cout << now++; } cout << '\n'; } } int main() { std::cin.tie(nullptr); std::ios_base::sync_with_stdio(false); int T = 1; for (int t = 0; t < T; t++) { solve(); } return 0; }