#include <iostream>
#include <vector>
using namespace std;
int main(){
	int N, M, K;
	cin >> N >> M >> K;
	char op;
	cin >> op;
	vector<int> B(M);
	for (int i = 0; i < M; i++){
		cin >> B[i];
	}
	vector<int> A(N);
	for (int i = 0; i < N; i++){
		cin >> A[i];
	}
	long long sumA = 0;
	for (int i = 0; i < N; i++){
		sumA += A[i];
	}
	sumA %= K;
	long long sumB = 0;
	for (int i = 0; i < N; i++){
		sumB += B[i];
	}
	sumB %= K;
	if (op == '+'){
		cout << (sumA * M + sumB * N) % K << endl;
	}
	if (op == '*'){
		cout <<  sumA * sumB % K << endl;
	}
}