#include <bits/stdc++.h>
using namespace std;

int a[20],i,x,ma,n;

int main() {
	cin>>n;
	for(i = 1;i <= n;i++){
		cin>>x;
		a[x]++;
	}
	
	ma = 0;
	for(i = 1;i <= 10;i++){
		if(a[i] != 0){
			cout<<i<<" "<<a[i]<<endl;
		}
	}
	return 0;
}

/**************************************************************
	Problem: 1884
	User: admin
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2072 kb
****************************************************************/