n,m,w=map(int,input().split())
a=sorted(list(map(int,input().split())),reverse=True)
b=list(map(int,input().split()))
c=list(map(int,input().split()))

ans=sum(a[:min(n,w)])

for i in range(1,1<<m):
    sum_w=0
    v=0
    for j in range(m):
        if i>>j&1==1:
            sum_w+=b[j]
            v+=c[j]

    if sum_w>w:
        continue
    v+=sum(a[:min((w-sum_w),n)])
    ans=max(ans,v)

print(ans)