import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Arrays;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] sa = br.readLine().split(" ");
		int h = Integer.parseInt(sa[0]);
		int w = Integer.parseInt(sa[1]);
		br.close();

		int ans = h * w;
		int[][] a = new int[h][w];
		for (int i = 0; i < h; i++) {
			Arrays.fill(a[i], 1);
		}
		if (h % 2 == 0) {
			if (w % 2 == 0) {
			} else {
				ans -= h;
				for (int i = 0; i < h; i++) {
					a[i][w - 1] = 0;
				}
			}
		} else {
			if (w % 2 == 0) {
				ans -= w;
				Arrays.fill(a[h - 1], 0);
			} else {
				ans -= Math.max(h, w);
				for (int i = 0; i < h; i++) {
					a[i][Math.min(i, w - 1)] = 0;
				}
				for (int i = h; i < w; i++) {
					a[h - 1][i] = 0;
				}
			}
		}

		System.out.println(ans);
		for (int i = 0; i < h; i++) {
			StringBuilder sb = new StringBuilder();
			for (int j = 0; j < w; j++) {
				sb.append(a[i][j]).append(' ');
			}
			sb.deleteCharAt(sb.length() - 1);
			System.out.println(sb.toString());
		}
	}
}