#include<iostream>
#include<map>
#include<string.h>
using namespace std;
int counti=0;
int main()
{
int n,c,r;
int wt[102][102];
cin>>n>>c>>r;
while(n!=0||c!=0||r!=0)
{
counti++;
char src[16];
int count=1;
map<string,int> mymap;
for(int i=1;i<=n;i++)
 for(int j=1;j<=n;j++)
   {
    if(i==j)
    wt[i][j]=0;
   else wt[i][j]=10002;
    }
cin>>src;
mymap[src]=count;
count++;
char d[16];
int w=0;
char arr[2005][16];
while(c--)
{
  cin>>d;
  mymap[d]=count++;
  strcpy(arr[w],d);
  w++;
}
char a[16],b[16],v[16];
while(r--)
{
  cin>>a>>v>>b;
  if(!mymap[a])
  mymap[a]=count++;
  if(!mymap[b])
  mymap[b]=count++;
  int num=0,k=2;
  while(v[k]>='0'&&v[k]<='9')
  {
     num*=10;
     num+=v[k]-'0';
     k++;
  }
  int len=strlen(v);
  if(v[0]=='-')
   wt[mymap[a]][mymap[b]]=num;
  else if(v[0]=='<'&&v[len-1]=='>')
    {wt[mymap[a]][mymap[b]]=num;
     wt[mymap[b]][mymap[a]]=num;
    }
  else wt[mymap[b]][mymap[a]]=num;
}
 
for(int g=1;g<=n;g++)
{
  for(int h=1;h<=n;h++)
  {
    for(int l=1;l<=n;l++)
    {
       if(wt[h][l]>wt[h][g]+wt[g][l])
        wt[h][l]=wt[h][g]+wt[g][l];
    }
  }
}
long long ans=0; 
for(int i=0;i<w;i++)
{
 ans+=wt[1][mymap[arr[i]]];
 ans+=wt[mymap[arr[i]]][1];
}
cout<<counti<<". "<<ans<<endl;
cin>>n>>c>>r;
}
return 0;
}
 

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4 2 5
NewTroy Midvale Metrodale
NewTroy   <-20-> Midvale
Midvale   --50-> Bakerline
NewTroy    <-5-- Bakerline
Metrodale <-30-> NewTroy
Metrodale  --5-> Bakerline
0 0 0