#include <bits/stdc++.h>
using namespace std;
map<int,int> mp;
int main(int argc, char** argv) {
	ios::sync_with_stdio(false);
	int n,x,maxn=-1;
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		cin>>x;
		mp[x]++;
	}
	
	map<int,int>::iterator it;
	for(it=mp.begin();it!=mp.end();it++)
	   cout<<it->first<<" "<<it->second<<endl;
	return 0;
}

/**************************************************************
	Problem: 1764
	User: admin
	Language: C++
	Result: Accepted
	Time:6 ms
	Memory:2232 kb
****************************************************************/