贪心

n = int(input())
a = [int(x) for x in input().split()]
b = [int(x) for x in input().split()]
c = [int(x) for x in input().split()]

st = [0] * n

def get_array(v,l1,l2):
    d = [0] * n
    for i,(x, y, z) in enumerate(zip(l1,l2,v)):
        d[i] = z - (x + y)
    d.sort(reverse = True)
    return d

def war(l):
    if l[0] <= 0:
        return -1
    cnt = 0
    s = 0
    for i in l:
        s += i
        if s <= 0:
            break
        cnt += 1
    return cnt

va = get_array(a,b,c)
vb = get_array(b,a,c)
vc = get_array(c,a,b)

res = max(war(va), war(vb), war(vc))
print(res)