N = int(input())
P, Q, R = map(int, input().split())
A, B, C = map(int, input().split())
L = -1

for x in range(0, P * Q * R  + 1):
    if x % P == A and x % Q == B and x % R == C:
        L = x
        break

if L == -1:
    print(0)
else:
    period = P * Q * R
    D = (N - L) // period + 1
    print(D)