#include <cstdio>

 #include <map>

 #include <vector>

 using namespace std;

 vector<int> order;

 map<int, int> freq;

 int main()

 {

     int n;

     freq.clear();

     while(scanf("%d", &n) != EOF)

     {

         if(freq.count(n)) freq[n] ++;

         else freq[n] = , order.push_back(n);

     }

     for(auto it = order.begin(); it != order.end(); ++ it)

              printf("%d %d\n", *it, freq[*it]);

     /*for(int i = 0; i < (int)order.size(); i++)

         printf("%d %d\n", order[i], freq[order[i]]);*/

     return ;

 }