import bisect
N,M,K = map(int, input().split())
B = [i for i in input().split()]
op = B.pop(0)
A = [int(input()) for _ in range(N)]
for i in range(M):
    B[i] = int(B[i])

def gcd(a, b):
    if a < b:
        a, b = b, a
    if a%b == 0:
        return b
    return gcd(b, a%b)

if op == "+":
    for i in range(N):
        A[i] %= K
    for j in range(M):
        B[j] %= K
    B.sort()
    ans = 0
    for a in A:
        ans += bisect.bisect_right(B, K-a) - bisect.bisect_left(B, K-a)
else:
    dic = {}
    i = 1
    while i < K**0.5:
        if K%i == 0:
            dic[i] = 0
            dic[K//i] = 0
        i += 1
    if K**0.5 == int(K**0.5):
        dic[int(K**0.5)] = 0
    cnt = 0
    for b in B:
        if gcd(b, K) == 1:
            continue
        if b%K == 0:
            cnt += 1
            continue
        for key in dic:
            if b%key == 0:
                dic[key] += 1
    ans = cnt*N
    for a in A:
        ans += dic[K//gcd(a, K)]

print(ans)