import sys, math
from itertools import groupby, product
n, m, k = map(int, input().split())
op, *B = input().split()
def c(it): return [(i, len(list(u))) for i, u in groupby(sorted(it))]
if op=="+":
	s = sorted(c(int(a)%k for a in sys.stdin) + c(-int(b)%k for b in B))
	print(sum(u*v for (i, u), (j, v) in zip(s, s[1:]) if i==j))
else:
	s = product(
	    c(math.gcd(int(a), k) for a in sys.stdin),
	    c(math.gcd(int(b), k) for b in B))
	print(sum(u*v for (i, u), (j, v) in s if i*j%k==0))