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()))
A.sort(reverse = True)
A_ac = [0]
for i in A:
	A_ac.append(A_ac[-1] + i)
ans = 0
for b in range(1 << M):
	B_sum = sum(B[i] for i in range(M) if b & (1 << i))
	C_sum = sum(C[i] for i in range(M) if b & (1 << i))
	if B_sum <= W:
		ans = max(ans, A_ac[min(N, W - B_sum)] + C_sum)
print(ans)