N, M, K = map(int, input().split())
op, *B = input().split()
A = [int(input()) for _ in range(N)]
B = list(map(int, B))
import numpy as np
a=np.array(A)
b=np.array(B)
a=a%K
b=b%K
if op=='+':
    cnt=0
    for i in range(n):
        c=a+b[i]
        cnt+=c.count(0)
else:
    cnt=0
    for i in range(n):
        c=a*b[i]
        cnt+=c.count(0)
print(cnt)