N, M, K = map(int, input().split())
op, *B = input().split()
A = [int(input())%K for _ in range(N)]
b = list(map(int, B))
import numpy as np
B = [0]*M
for i in range(M):
    B[i]=b[i]%K


if op=='+':
    cnt=0
    for i in range(N):
        cnt+=max(0,B.count(K-A[i]))
else:
    cnt=(N-(max(0,A.count(0))))*(M-(max(0,B.count(0))))
    cnt=N*M-cnt
        
print(cnt)