def solve(H,W):
    A=[[0]*W for _ in range(H)]

    if H==1 or W==1:
        pass
    elif H%2==0:
        if W%2==0:
            for i in range(H):
                a=A[i]
                for j in range(W):
                    a[j]=1
        else:
            for i in range(H):
                a=A[i]
                for j in range(W-1):
                    a[j]=1
    else:
        if W%2==0:
            for i in range(H-1):
                a=A[i]
                for j in range(W):
                    a[j]=1
        else:
            if H>W:
                flag=1
                H,W=W,H
                A=[list(a[::-1]) for a in zip(*A)]
            else:
                flag=0

            for i in range(H):
                for j in range(W):
                    if not((i==j) or ((i==H-1) and (j>=H))):
                        A[i][j]=1

            if flag:
                A=[list(a[::-1]) for a in zip(*A)]

    X=0
    for a in A:
        X+=sum(a)
    return X,A

H,W=map(int,input().split())
X,A=solve(H,W)

print(X)
for a in A:
    print(*a)