N, M, W = map(int, input().split())
A = list(map(int, input().split()))
B = list(map(int, input().split()))
C = list(map(int, input().split()))
D = list(map(int, input().split()))
Weight = A + [-c for c in C]
Value = B + [-d for d in D]
nm = N + M
dp = [-(10**9)] * 2**nm
dp[0] = 0
ans = 0
for i in range(2**nm):
    if dp[i] == -(10**9):
        continue
    w = 0
    for j in range(nm):
        if i >> j & 1:
            w += Weight[j]
    for j in range(nm):
        if i >> j & 1:
            continue
        if 0 <= w+Weight[j] <= W:
            dp[i|1<<j] = max(dp[i|1<<j],dp[i]+Value[j])

print(max(dp))