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)
st=[0]
for i in range(len(A)): st.append(st[-1]+A[i])
set_=set()
for i in range(2**M):
  bit=[]
  temp=i
  for j in range(M):
    bit.append(temp&1)
    temp>>=1
  weight=0
  value=0
  for j in range(M):
    if bit[j]:
      weight+=B[j]
      value+=C[j]
  if weight>W: continue
  rest=W-weight
  value+=st[min(rest, len(st)-1)]
  set_.add(value)
print(max(set_))