import sys
#sys.setrecursionlimit(1000000)
input = sys.stdin.readline
def mp():return map(int,input().split())
def lmp():return list(map(int,input().split()))
import math
import bisect
from copy import deepcopy as dc
from itertools import accumulate
from collections import Counter, defaultdict, deque
import itertools
def ceil(U,V):return (U+V-1)//V
def modf1(N,MOD):return (N-1)%MOD+1
inf = int(1e10)
mod = int(1e9+7)

n = int(input())
r = sorted(list(Counter(lmp()).items()))
g = sorted(list(Counter(lmp()).items()))
b = [(-inf,0)]+sorted(list(Counter(lmp()).items()))+[(inf, 0)]
ans = 0
for i,u in r:
    for j,v in g:
        if i < j:break
        L,R = 0,len(b)-1
        while (R-L) != 1:
            m = (R+L)//2
            if b[m][0] <= i-j:
                L = m
            else:
                R = m
        #print(L,R)
        LL,RR = 0,len(b)-1
        while (RR-LL) != 1:
            m = (RR+LL)//2
            if b[m][0] <= i:
                LL = m
            else:
                RR = m
        #print(i,j,R,RR)
        # L = bisect.bisect_right(b,i-j)
        # R = bisect.bisect_right(b,i)
        ans += max(0,(RR-R))*u*v
print(ans)