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()))
A = A + C
B = B + D
ans = -10**18
for s in range(1 << (N + M)):
    wp, vp, wm, vm = 0, 0, 0, 0
    for i in range(N + M):
        if (s >> i) & 1:
            if i < N:
                wp += A[i]
                vp += B[i]
            else:
                wm += A[i]
                vm += B[i]
    if wm > wp or wp - wm > W:
        continue
    ans = max(ans, vp - vm)
    
print(ans)