N, M, W0 = map(int, input().split())
A = list(map(int, input().split()))
B = list(map(int, input().split()))
C = [-i for i in list(map(int, input().split()))]
D = [-i for i in list(map(int, input().split()))]
NM = N + M
W = [0] * (1 << NM)
V = [0] * (1 << NM)
checked = set()
ans = 0
q = []

for i in range(N):
    x = 1 << i
    q.append(1 << i)
    W[x] = A[i]
    V[x] = B[i]

A += C
B += D

while q:
    x = q.pop(-1)
    v = V[x]
    w = W[x]
    for i in range(NM):
        if x >> i & 1:
            continue
        y = x | (1 << i)
        if y in checked:
            continue
        if W0 < w + A[i]:
            checked.add(y)
        if 0 <= w + A[i] <= W0:
            y = x | (1 << i)
            W[y] = w + A[i]
            V[y] = v + B[i]
            q.append(y)
            checked.add(y)

print(max(V))