import collections
import math

N,M,K = map(int,input().split())
B = list(input().split())
OP = B[0]
B = list(map(int, B[1:]))
A = []
for _ in range(N):
    A.append(int(input()))

ANS = 0
if OP=='+':
    for i in range(N):
        A[i] = A[i]%K
    for i in range(M):
        B[i] = B[i]%K
    CA = collections.Counter(A)
    CB = collections.Counter(B)
    for k,v in CA.items():
        ANS += CB[(K-k)%K]*v
else:
    for i in range(N):
        A[i] = math.gcd(A[i],K)
    for i in range(M):
        B[i] = math.gcd(B[i],K)
    CA = collections.Counter(A)
    CB = collections.Counter(B)
    for k1,v1 in CA.items():
        for k2,v2 in CB.items():
            if k1*k2%K==0:
                ANS += v1*v2

print(ANS)