#include<iostream>
#include<fstream>
#include<vector>
using namespace std;
ifstream in ("ubuntzei.in");
ofstream out ("ubuntzei.out");

int main (){
  int n,m,k,i,j,t;
  in>>n>>m>>k;
  cout<<n<<" "<<m<<" "<<k;
  vector<vector<int> > d(n,vector<int>(n,100000));

  for(i=0;i<k;i++)
    in>>j;

  for(i=0;i<m;i++)
  {
    in>>j>>t;
    j--;t--;
    in>>d[j][t];
    d[t][j] = d[j][t];
  }



  return 0;
}