a=list(map(int,input().split()))+list(map(int,input().split()))
t=a[-1]
q=[(a[i+4],a[i]) for i in range(4)]
q.sort()
c=0
for g,h in q:
  if t//g<=h:
    t-=g*h
    c+=h
  else:
    t-=g*(t//g)
    c+=t//g
print(c)