from bisect import bisect_left, bisect_right
from collections import Counter

N = int(input())
R = list(map(int, input().split()))
G = list(map(int, input().split()))
B = list(map(int, input().split()))

rs = Counter(R)
gs = Counter(G)
B.sort()
ans = 0
for r in rs:
    for g in range(1, r+1):
        if gs[g] == 0: continue
        lo = bisect_left(B, r - g + 1)
        hi = bisect_right(B, r)
        ans += (hi - lo) * rs[r] * gs[g]

print(ans)