N = int(input())
P, Q, R = map(int, input().split())
A, B, C = map(int, input().split())

i = 0

while i <= N:
  if i%P == A and i%Q == B and i%R == C:
    break
  i += 1

print((N-i)//(P*Q*R)+1 if i <= N else 0)