import sys
input = sys.stdin.readline
N,M,K = map(int,input().split())
op,*B = input().split()
A = [int(input()) for i in range(N)]
B = [int(b) for b in B]

from collections import Counter
ans = 0
if op=='+':
    c = Counter()
    for a in A:
        c[a%K] += 1
    for b in B:
        ans += c[(K-b%K)%K]
else:
    ds = set()
    m = 1
    while m*m <= K:
        if K%m==0:
            ds.add(m)
            ds.add(K//m)
        m += 1
    ds = sorted(list(ds), reverse=True)
    c = Counter()
    for a in A:
        for d in ds:
            if a%d==0:
                c[d] += 1
                break
    for b in B:
        for d in ds:
            if (b*d)%K == 0:
                ans += c[d]

print(ans)