H, W = map(int, input().split())

rows = H - (H % 2)
cols = W - (W % 2)
ans = rows * cols

print(ans)
for i in range(H):
    row = []
    for j in range(W):
        if i < rows and j < cols:
            row.append('1')
        else:
            row.append('0')
    print(' '.join(row))