#include <bits/stdc++.h>
using namespace std;
 
int main(){
  int n, x, t=0;
  cin>>n>>x;
  int arr[n];
  string s[n+1];
  string a[x+1];
  for(int i=1; i<=n; i++){
    cin>>s[i];
  }
  for(int i=1; i<=x; i++){
    cin>>a[i];
  }
  for(int i=0; i<n; i++){
    cin>>arr[i];
  }
  for(int i=1; i<=n; i++){
    for(int j=1; j<=x/*2*/; j++){
      if(s[i]==a[j]){
        t+=arr[j];
        break;
      }
      if(x==j){
        t+=arr[0];
      }
    }
  }
  cout<<t;
}

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MyAyCmNvZGUgcXVlZW4gYXRjb2RlcgpraW5nIHF1ZWVuCjEwIDEgMQ==

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