#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
typedef int64_t lint;
#define rep(i, n) for(int i=0; i<n; i++)
#define repx(i, l, n) for(int i=l; i<n; i++)
#define all(v) v.begin(), v.end()
#define show(x) cout << #x << ": " << x << endl;
#define list(x) cout << #x << ": " << x << "  ";
#define pb push_back
using vi = vector<lint>;
using vvi = vector<vector<lint>>;
template<class T> inline void vin(vector<T>& v) { rep(i, v.size()) cin >> v.at(i); }
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
template<class T> inline void drop(T x) { cout << x << endl; exit(0); }
constexpr lint LINF = LLONG_MAX/2;

int main() {
	lint H, W;
	cin >> H >> W;
	vvi v(H, vi(W));

	lint a=0, b=0, c=0, x, y, z;
	rep(i, H-1) {
		rep(j, W-1) {
			if (i%2 == 0 && j%2 == 0) {
				v[i][j] = 1;
				v[i][j+1] = 1;
				v[i+1][j] = 1;
				v[i+1][j+1] = 1;
				a += 4;
			}
		}
	}
	if (H%2 == 1 && W%2 == 1 && H > 1 && W > 1) {
		v[H-2][W-2] = 0;
		v[H-1][W-2] = 1;
		v[H-2][W-1] = 1;
		v[H-1][W-1] = 1;
		a += 2;
	}
	std::cout << a << '\n';
	rep(i, H) {
		rep(j, W) {
			std::cout << v[i][j] << ' ';
		}
		std::cout << '\n';
	}
}