#include <stdio.h>

int main(int argc, char const* argv[])
{
    long N, M, K;
    scanf("%ld %ld %ld", &N, &M, &K);
    char op;
    scanf(" %c", &op);

    long B[M];
    for (int i = 0; i < M; i++) {
        scanf("%ld", &B[i]);
    }
    long int A[N];
    for (int i = 0; i < N; i++) {
        scanf("%ld", &A[i]);
    }
    long sum = 0;

    switch (op) {
    case '+':
        for (int i = 0; i < N; i++) {
            for (int j = 0; j < M; j++) {
                sum += A[i] + B[j];
            }
        }
        break;

    default:
        for (int i = 0; i < N; i++) {
            for (int j = 0; j < M; j++) {
                sum += A[i] * B[j];
            }
        }
        break;
    }

    printf("%ld", sum % K);
}