N,A,B,C=map(int,input().split())
ans=N
for a in {A,B,C}:
    d = 0
    b = a
    while (2**d)&b:
        b -= 2**d
        d += 1
    if b != 0:
        continue
    ans -= N//(a+1)
    #print(N//(a+1))
print(ans-1)