from collections import defaultdict
from math import gcd
N,M,K=map(int, input().split())
S=input().split()
op=S[0]
B=list(map(int,S[1:]))
A=list(int(input()) for _ in range(N))
res=0
if op=="+":
    C=defaultdict(int)
    for b in B:
        C[b%K]+=1
    for a in A:
        a%=K
        res+=C[(K-a)%K]
    print(res)
else:
    C=defaultdict(int)
    D=defaultdict(int)
    for a in A:
        C[gcd(a,K)]+=1
    for b in B:
        D[gcd(b,K)]+=1
    for key,val in C.items():
        for key2, val2 in D.items():
            if key*key2%K==0:
                res+=val*val2
    print(res)