题解 | #A+B for Matrices#

while True:
    try:
        l1=list(map(int,input().strip().split()))
        a=l1[0]
        if a==0:
            continue
        b=l1[1]
        list1=[]
        list2=[]
        for i in range(a):
            list3=list(map(int,input().strip().split()))
            list1.append(list3)
        for j in range(a):
            list3=list(map(int,input().strip().split()))
            list2.append(list3)
        num=0
        for i in range(a):
            for j in range(b):
                num=list1[i][j]+list2[i][j]
                list1[i][j]=num
        count=0
        for i in range(a):
            flag=0
            for j in range(b):
                if list1[i][j]==0:
                    flag=1
                else:
                    flag=0
                    break
            if flag==1:
                count+=1
        for i in range(b):
            flag=0
            for j in range(a):
                if list1[j][i]==0:
                    flag=1
                else:
                    flag=0
                    break
            if flag==1:
                count+=1        
        print(count)
    except EOFError:
        break