#include<iostream>
#include<map>
#include<vector>
#include<stdio.h>
#include<sstream>
using namespace std;

int main()
{
    char a[100000];
    int n,i,t;
    vector<int>v;
    map<int, int>mp;
    int num;
    gets(a);
    stringstream ss(a);
    while(ss>>num)
    {
        if (mp[num]==0)v.push_back(num);
        mp[num]++;
    }
    for(i=0;i<v.size();i++)
        printf("%d %d\n",v[i],mp[v[i]]);

    return 0;
}