# max(g,b) <= r < g+b
from bisect import bisect_left as bl , bisect_right as br
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=sorted(tuple(Counter(r).items()))
gs=sorted(tuple(Counter(g).items()))
bs=sorted(tuple(Counter(b).items()))
rcnt = [0]*10**6
for i,j in rs:
    rcnt[i]=j

for i in range(1,10**6):
    rcnt[i] += rcnt[i-1]

ans=0

for i in range(len(gs)):
    for j in range(len(bs)):
        y=gs[i][0]+bs[j][0]
        x=max(gs[i][0],bs[j][0])
        t1=rcnt[max(y-1,0)]-rcnt[max(x-1,0)]
        ans += t1*gs[i][1]*bs[j][1]
        
print(ans)