from itertools import accumulate

N, M, W = map(int, input().split())
A = list(accumulate(sorted(map(int,
  input().split()), reverse=True), initial=0))
B = list(map(int, input().split()))
C = list(map(int, input().split()))

ans = 0
for S in range(1<<M):
  wgt = val = 0
  for i in range(M):
    if S>>i&1 == 0: continue
    wgt += B[i]; val += C[i]
  if wgt > W: continue
  ans = max(ans, val + A[min(W - wgt, N)])

print(ans)