n, m, k = map(int, input().split())
op, *b = input().split()
b = list(map(int, b))
a, ans = [], 0
for i in range(n):
    a.append(int(input()))


if op == '+':
    ans += sum(a) * m
    ans += sum(b) * n
else:
    ans = sum(a) * sum(b)

print(ans % k)