import sys
from math import gcd
def I(): return int(sys.stdin.readline().rstrip())
def MI(): return map(int,sys.stdin.readline().rstrip().split())
def LS(): return list(sys.stdin.readline().rstrip().split())


N,M,K = MI()
X = LS()
op = X[0]
B = [int(X[i]) for i in range(1,M+1)]
A = [I() for _ in range(N)]

if op == '+':
    count_A = {}
    count_B = {}
    for i in range(N):
        a = A[i] % K
        if a in count_A.keys():
            count_A[a] += 1
        else:
            count_A[a] = 1
    for i in range(M):
        b = B[i] % K
        if b in count_B.keys():
            count_B[b] += 1
        else:
            count_B[b] = 1
    ans = 0
    for i in count_A.keys():
        j = (K-i) % K
        if j in count_B.keys():
            ans += count_A[i]*count_B[j]
else:
    div = []
    for i in range(1,int(K**.5)+1):
        if K % i == 0:
            div.append(i)
            if i != K//i:
                div.append(K//i)
    count_A = {}
    for d in div:
        r = sum(A[i] % d == 0 for i in range(N))
        count_A[d] = r
    ans = 0
    for b in B:
        r = K//gcd(K,b)
        ans += count_A[r]

print(ans)