n, m, k = map(int, input().split())

b = input().split()
op = b[0]
bb = [int(x) for x in b[1:]]
a = [int(input()) for _ in range(n)]

if op == "+":
    ans = (sum(bb) * n + sum(a) * m) % k
else:
    ans = (sum(bb) * sum(a)) % k

print(ans)