#include<stdio.h>
#include<iostream>
#include<map>
#include<vector>
 
using namespace std;
 
struct data
{
    long cnt,val,index;
};
 
vector<data>vec;
 
map<int,int>mp;
 
int main()
{
    int tag=0,n,i;
    data ob;
    while(scanf("%d",&n)==1)
    {
        if(mp.find(n)==mp.end())
        {
            mp[n]=++tag;
            ob.val=n;
            ob.cnt=1;
            ob.index=tag;
            vec.push_back(ob);
        }
        else
        {
            i=mp[n];
            vec[i-1].cnt+=1;
        }
    }
 
    for(i=0;i<vec.size();i++)
    {
        printf("%ld %ld\n",vec[i].val,vec[i].cnt);
    }
 
    return 0;
}