N,M,W=map(int,input().split())
A=list(map(int,input().split()))
A.sort(reverse=True)
B=[0]+list(map(int,input().split()))
C=[0]+list(map(int,input().split()))
D=[]
for b,c in zip(B,C):
    D.append([b,c])
D.sort()
j=0
for i in range(M+1):
    w=0;v=0
    while j<N and w<D[i][0]:
        w+=1;v+=A[j]
        j+=1
    if w==D[i][0] and v>D[i][1]:
        D[i][1]=v
        for k in range(D[i][0]):
            A[j-k-1]=0
A.sort(reverse=True)
dp=[set() for _ in range(21)]
dp[0].add((0,0))
for i in range(M):
    for w,v in list(dp[i]):
        dp[i+1].add((w,v))
        if w+D[i+1][0]<=W:dp[i+1].add((w+D[i+1][0],v+D[i+1][1]))
ans_w=0
ans_v=0
for w,v in list(dp[M]):
    if v>ans_v:
        ans_w=w
        ans_v=v
i=0
while i<N and ans_w<W:
    ans_w+=1
    ans_v+=A[i]
    i+=1
print(ans_v)