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

max_rows = H if H % 2 == 0 else H - 1
max_cols = W if W % 2 == 0 else W - 1
max_ans = max_rows * max_cols

print(max_ans)
for i in range(1, H + 1):
    row = []
    for j in range(1, W + 1):
        if i <= max_rows and j <= max_cols:
            row.append('1')
        else:
            row.append('0')
    print(' '.join(row))