from collections import defaultdict
from math import gcd
from itertools import product
def solve_add(a,b,k):
    cnt_a = [0]*k
    cnt_b = [0]*k
    for v in a:
        cnt_a[v%k] += 1
    for v in b:
        cnt_b[v%k] += 1
    return sum(cnt_a[i]*cnt_b[-i] for i in range(k))
def solve_mul(a,b,k):
    cnt_a = defaultdict(int)
    cnt_b = defaultdict(int)
    for v in a:
        cnt_a[gcd(k,v)] += 1
    for v in b:
        cnt_b[gcd(k,v)] += 1
    res = 0
    for (a,ca),(b,cb) in product(tuple(cnt_a.items()),tuple(cnt_b.items())):
        if a*b%k == 0:
            res += ca*cb
    return res
n,m,k = map(int,input().split())
op, *b = input().split()
b = list(map(int,b))
a = [int(input()) for _ in range(n)]
if op == '+':
    print(solve_add(a,b,k))
else:
    print(solve_mul(a,b,k))