#include <bits/stdc++.h>
#define int long long 
using namespace std;

signed 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.at(i);
  vector<int> A(N);
  for( int i = 0; i < N; i++ ) cin >> A.at(i);
  
  if( op == '+' ){
    int ans = 0;
    for( int i = 0; i < M; i++ ) ans = (ans+B.at(i)*N)%K;
    for( int i = 0; i < N; i++ ) ans = (ans+A.at(i)*M)%K;
    cout << ans%K << endl;
  }else{
    int tate = 0;
    int yoko = 0;
    for( int i = 0; i < M; i++ ) yoko = (yoko+B.at(i))%K;
    for( int i = 0; i < N; i++ ) tate = (tate+A.at(i))%K;
    cout << tate*yoko%K << endl;
  }
  
}