import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int m = sc.nextInt();
        int k = sc.nextInt();
        char op = sc.next().charAt(0);
        long sumB = 0;
        for (int i = 0; i < m; i++) {
            sumB += sc.nextInt();
        }
        sumB %= k;
        long sumA = 0;
        for (int i = 0; i < n; i++) {
            sumA += sc.nextInt();
        }
        sumA %= k;
        if (op == '+') {
            System.out.println((sumA * m + sumB * n) % k);
        } else {
            System.out.println(sumA * sumB % k);
        }
    }
}