N = int(input())
A = list(map(int,input().split()))
B = list(map(int,input().split()))
C = sorted(list(map(int,input().split())))

Amax = max(A)
AL = [0] * (Amax + 1)
BL = [0] * (Amax + 1)

for a in A:
    AL[a] += 1

for b in B:
    if b <= Amax:
        BL[b] += 1

CC = [0] * (Amax+1)
j = 0
temp = 0
for c in C:
    if c > Amax:
        break
    while j < c:
        j += 1
        CC[j] = CC[j-1]
    temp += 1
    CC[j] = temp
while j < Amax:
    j += 1
    CC[j] = CC[j-1]

ans = 0
for i in range(Amax + 1):
    for j in range(i + 1):
        ans += (CC[i] - CC[i - j]) * AL[i] * BL[j]
print(ans)