import sys
def input():return sys.stdin.readline().strip()
H,W=map(int,input().split())
if H%2:
	if W%2:
		print(H*W-max(H,W))
		for i in range(H):
			print(*[int(j==i or i>=W and j==W-1 or i==H-1 and j>=H-1) for j in range(W)])
	else:
		print(H*W-W)
		for i in range(H-1):
			print(*[1 for j in range(W)])
		print(*[0 for j in range(W)])
else:
	if W%2:
		print(H*W-H)
		for i in range(H):
			print(*([1 for j in range(W-1)]+[0]))
	else:
		print(H*W)
		for i in range(H):
			print(*[1 for j in range(W)])