#include<iostream.h>
#define max 100
typedef struct arcnode{
  int tailvex,headvex;
  arcnode *tlink,*hlink;
  int info;
}arcnode;
typedef struct{
  char data;
  arcnode *firstin,*firstout;
}box;
class olgraph{
  box xlist[max];
  int n,e;
 public:
  void create(int m,int k);
  int locatex(char x);
  int indegree(char x);
  int outdegree(char x);
  void addarc(char u,char v,int w);
};
int olgraph::locatex(char x){
  for(int i=0;i<n;i++)
    if(x==xlist[i].data)return i;
  return -1;
}
void olgraph::create(int m,int k){
  for(int i=0;i<m;i++){
    cin>>xlist[i].data;
    xlist[i].firstin=xlist[i].firstout=NULL;
  }
  n=m;e=k;
  char u,v;
  int t,h,w;
  arcnode *p;
  for(i=0;i<k;i++){
    cin>>u>>v>>w;
    t=locatex(u);
    h=locatex(v);
    p=new arcnode;
    p->tailvex=t;
    p->headvex=h;
    p->info=w;
    p->tlink=xlist[t].firstout;
    xlist[t].firstout=p;
    p->hlink=xlist[h].firstin;
    xlist[h].firstin=p;
   }
 }
  int olgraph::outdegree(char x){
   int t=locatex(x);
   arcnode *p=xlist[t].firstout;
   int count=0;
   while(p){
    count++;
    p=p->tlink;
   }
   return count;
  }
 int olgraph::indegree(char x){
  int t=locatex(x);
  arcnode *p=xlist[t].firstin;
  int count=0;
  while(p){
    count++;
    p=p->hlink;
   }
  return count;
}
void main(void){
   olgraph g;
   g.create(4,4);
   cout<<g.outdegree('a')<<endl;
   cout<<g.indegree('d')<<endl;
}