n, m, k = map(int, input().split())
l = list(map(str, input().split()))
b = [int(l[i]) for i in range(1, m+1)]

op = l[0]
#print(op)
#rint(b)

a = [0]*n
for i in range(n):
    a[i] = int(input())

if op == '+':
    da = {}
    for i in range(n):
        if a[i]%k not in da:
            da[a[i]%k] = 1
        else:
            da[a[i]%k] += 1

    db = {}
    for i in range(m):
        if b[i]%k not in db:
            db[b[i]%k] = 1
        else:
            db[b[i]%k] += 1
    ans = 0
    for i in da:
        if i == 0:
            j = 0
        else:
            j = k-i
        if j in db:
            ans += da[i]*db[j]

else:
    import math
    da = {}
    for i in range(n):
        g = math.gcd(a[i], k)
        if g not in da:
            da[g] = 1
        else:
            da[g] += 1

    db = {}
    for i in range(m):
        g = math.gcd(b[i], k)
        if g not in db:
            db[g] = 1
        else:
            db[g] += 1
    ans = 0
    for i in da:
        for j in db:
            if (i*j)%k == 0:
                ans += da[i]*db[j]
    #print(da)
    #print(db)

print(ans)