#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;
signed main() { 
  ios::sync_with_stdio(false); cin.tie(0);
  int n, m, k;
  cin >> n >> m >> k;
  char op;
  cin >> op;
  vector<long long> b(m), a(n);
  for (int i = 0; i < m; i++) cin >> b[i];
  for (int i = 0; i < n; i++) cin >> a[i];
  long long row = 0;
  for (int i = 0; i < m; i++) (row += b[i]) %= k;
  long long ans = 0;
  for (int i = 0; i < n; i++) {
    if (op == '*') (ans += a[i] * row % k) %= k;
    else (ans += a[i] * m % k + row) %= k;
  }
  cout << ans << endl;
  return 0;
}