def pc(*args):
    tl = 1
    for i in range(1,len(args)):
        tl *= args[i]
    prime_total = args[0] // tl

    return prime_total

n = int(input())
a,b,c,d = map(int,input().split())

total = pc(n,a) + pc(n,b) + pc(n,c) + pc(n,d) - pc(n,a,b) - pc(n,a,c) - pc(n,a,d) - pc(n,b,c) - pc(n,b,d) - pc(n,c,d) +pc(n,a,b,c) + pc(n,a,c,d) + pc(n,a,b,d) + pc(n,b,c,d) - pc(n,a,b,c,d)

print(total)