n, m, W = map(int, input().split())
N = n + m
a = list(map(int, input().split()))
b = list(map(int, input().split()))
c = list(map(int, input().split()))
d = list(map(int, input().split()))

e = a + [-i for i in c]
f = b + [-i for i in d]

dp = [None for i in range(1<<N)]
dp[0] = (0, 0)
ans = 0
for i in range(1<<N):
    if dp[i] == None:
        continue
    w, v = dp[i]
    ans = max(ans, v)
    for j in range(N):
        if i >> j & 1:
            continue
        if 0 <= w + e[j] <= W:
            dp[i | (1<<j)] = (w + e[j], v + f[j])

print(ans)