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)] bc = [0] for i in range(1,len(b)): bc.append(bc[-1]+b[i][1]) ans = 0 #print(bc) 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: #print(LL,RR) m = (RR+LL)//2 if b[m][0] <= i: LL = m else: RR = m #print(i,j,bc[L],bc[RR]) # L = bisect.bisect_right(b,i-j) # R = bisect.bisect_right(b,i) ans += max(0,(bc[LL]-bc[L]))*u*v print(ans)