from itertools import combinations, accumulate

N, M, W = map(int, input().split())
A = sorted(map(int, input().split()), reverse=True)
B = list(map(int, input().split()))
C = list(map(int, input().split()))

acc_A = [0] + list(accumulate(A))

ans = acc_A[min(W, N)]

for i in range(1, M+1):
    for comb in combinations(zip(B, C), r=i):
        sum_weight = sum([b for b, _ in comb])
        sum_value = sum([c for _, c in comb])
        
        if sum_weight > W:
            continue
        
        value = sum_value + acc_A[min(W - sum_weight, N)]
        ans = max(ans, value)

print(ans)