#How many (r,g,b) st r>g+b ?

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

M=max(max(R),max(G),max(B))
X=[0]*(M+1); Y=[0]*(M+1); Z=[0]*(M+1)

for i in range(N):
    X[R[i]]+=1
    Y[G[i]]+=1
    Z[B[i]]+=1

Z_cum=[0]*(M+1)
for i in range(1,M+1):
    Z_cum[i]=Z_cum[i-1]+Z[i]

K=0
for a in range(1,M+1):
    for b in range(1,a+1):
        p=a-b
        K+=X[a]*Y[b]*(Z_cum[a]-Z_cum[p])

print(K)