#include<bits/stdc++.h>
using namespace std;
int a[1500000001],b[200001],c,maxn=0;
int main(){
	cin>>c;
	for(int i=1;i<=c;i++){
		cin>>b[i];
		if(maxn<b[i]) maxn=b[i];
		a[b[i]]++;
	}
	for(int i=1;i<=maxn;i++){
		if(a[i]>0) cout<<i<<" "<<a[i]<<endl;
	}
}

一会40一会60