#include <iostream>
using namespace std;
int main() {
size_t n, m;
cin >> n >> m;
bool arr[n][m] = {false};
for(size_t i = 0; i < n; i++){
for(size_t j = 0; j < m; j++){
cout << arr[i][j] << " ";
}
cout << endl;
}
}
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