import sys
sys.setrecursionlimit(5*10**5)
input = sys.stdin.readline
from collections import defaultdict, deque, Counter
from heapq import heappop, heappush
from bisect import bisect_left, bisect_right
from math import gcd

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()))
dp = [[0]*(510) for i in range(1<<(n+m))]
ans = 0
for bit in range(1<<(n+m)):
    for i in range(n+m):
        if not((bit>>i)&1): continue
        for w in range(510):
            if i < n and w >= a[i]:
                dp[bit][w] = max(dp[bit][w],dp[bit-(1<<i)][w-a[i]] + b[i])
            elif i >= n and w + c[i-n] <= W:
                dp[bit][w] = max(dp[bit][w],dp[bit-(1<<i)][w+c[i-n]] - d[i-n])
            ans = max((w <= W) * dp[bit][w], ans)
    

print(ans)