def yn(hantei, yes='Yes', no='No'): print(yes if hantei else no)
def p(*args): print(*args)
n,m=map(int, input().split())
if n%2==0 and m%2==0:
    print(n*m)
    for i in range(n):
        print(*[1]*m)
elif n%2==1 and m%2==0:
    print((n-1)*m)
    for i in range(n-1):
        print(*[1]*m)
    print(*[0]*m)
elif n%2==0 and m%2==1:
    print((n)*(m-1))
    for i in range(n):
        print(*[1]*(m-1)+[0])
    #print(*[0]*m)
elif n >= m:
    print(n*m-n)
    for i in range(n-m):
        print(*[1]*(m-1)+[0])
    for i in range(m):
        print(*[1]*(m-i-1) + [0] + [1] * i)
else:
    print(n*m-m)
    print(*[0]*(m-n+1) + [1] * (n-1))
    for i in range(1,n):
        print(*[1]*(m-n+i) + [0] + [1]*(n-i-1))