#include <iostream>
#include <string>
#include <vector>

int main() {
    uint32_t N, M, K;
    std::cin >> N >> M >> K;

    std::string op;
    std::cin >> op;

    std::vector<uint32_t> bs{};
    for (uint32_t i = 0; i < M; ++i) {
        uint32_t b;
        std::cin >> b;
        bs.push_back(b);
    }

    std::vector<uint32_t> as{};
    for (uint32_t i = 0; i < N; ++i) {
        uint32_t a;
        std::cin >> a;
        as.push_back(a);
    }

    uint32_t result = 0;
    for (auto a : as) {
        for (auto b : bs) {
            result += op == "+" ? (a + b) : (a * b);
            result %= K;
        }
    }

    std::cout << result % K << std::endl;
}