#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: wangyiyang
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/