#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
  int H,W,K;
  cin>>H>>W>>K;
  char a;
  cin>>a;
  vector<int> A(W),B(H);
  int s=0,t=0;
  for(int i=0;i<W;i++){
      cin>>A[i];
      s += A[i];
      s %= K;
  } 
  for(int i=0;i<H;i++){
      cin>>B[i];
      t += B[i];
      t %= K;
  }
  if(a == '*') cout<<s*t%K<<endl;
  else{
      cout<<(s*(H%K)+t*(W%K))%K<<endl;
  }
}