
#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cmath>
#include<math.h>
#include<string>
#include<string.h>
#include<stack>
#include<queue>
#include<vector>
#include<utility>
#include<set>
#include<map>
#include<stdlib.h>
#include<iomanip>

using namespace std;

#define ll long long
#define ld long double
#define EPS 0.0000000001
#define INF 1e9
#define MOD 1000000007
#define rep(i,n) for(i=0;i<n;i++)
#define loop(i,a,n) for(i=a;i<n;i++)
#define all(in) in.begin(),in.end()
#define shosu(x) fixed<<setprecision(x)

typedef vector<int> vi;
typedef pair<int,int> pii;

int main(void) {
  int i,j;
  string s;
  int a=0;
  int v[1005][2]={};
  while(getline(cin,s)){
    if(s[0]=='\0'){
      a++;
      continue;
    }
    int x=0;
    rep(i,s.size()){
      if(s[i]==',')break;
      x*=10;
      x+=s[i]-'0';
    }
    v[x][a]++;
  }
  rep(i,1005)
    if(v[i][0] && v[i][1])
      cout<<i<<" "<<v[i][0]+v[i][1]<<endl;
}