n, m, k = map(int, input().split())
op, *b = input().split()
b = list(map(int, b))
a = [int(input()) for _ in range(n)]

a_sum = sum(a)
ans = 0
for eb in b:
    if op == "*":
        ans += eb * a_sum
    else:
        ans += eb * n + a_sum

    ans %= k

print(ans)