题解 | #称砝码#

while True:
    try:
        n=int(input())
        weights=list(map(int,input().split()))
        nums=list(map(int,input().split()))
        
        res={0}
        for i,w in enumerate(weights):
            for j in range(nums[i]): # 每个砝码循环添加其数量次 
                for r in list(res): 
                    res.add(r + w)
        print(len(res))
    except:
        break