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
    if a==1:
        ans -= (N+1)//2
    else:
        if N>=a//2:
            ans -= 1+(N-1-a//2)//(a+1)
    #print(N//(a+1))
print(ans)