#include<iostream>
using namespace std;
int a[200005];
int main(){
    int n,m;
    cin>>n;
    for(int i=1;i<=n;i++){
		cin>>m;
		a[m]+=1;
	}
	for(int i=1;i<=200000;i++){
		if(a[i]>=1){
			cout<<i<<" "<<a[i]<<endl;
		}
	}
    return 0;
}