from collections import *
from itertools import *
from functools import *
from heapq import *
import sys,math
input = sys.stdin.readline

N,M,K = map(int,input().split())
op,*B = input().split()
A = [int(input()) for _ in range(N)]
B = [int(i) for i in B]
if op == '+':
    
    ans = 0
    
    A = [a%K for a in A]
    B = [b%K for b in B]
    
    C = Counter(B)
    
    for a in A:
        
        ans += C[(K-a)%K]
        
    print(ans)

else:
    
    ans = 0
    
    
    def md(n):
        lower_divisors , upper_divisors = [], []
        i = 1
        while i*i <= n:
            if n % i == 0:
                lower_divisors.append(i)
                if i != n // i:
                    upper_divisors.append(n//i)
            i += 1
        return lower_divisors + upper_divisors[::-1]    
        
    P = md(K)
    
    C = defaultdict(int)
    
    for b in B:
        
        for p in P:
            
            if b%p==0:
                
                C[p] += 1
    
    for a in A:
        
        d = math.gcd(a,K)
        
        ans += C[K//d]
    print(ans)