#include<bits/stdc++.h>
using namespace std;
int main()
{
	int a[200005]={0},n,b[200005],l=0,k;
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		cin>>b[i];
		a[b[i]]++;
	}
	sort(b,b+n);
	k=b[n];
	while(l<=b[n])
	{
		l++;
		if(a[l]!=0)
		{
			cout<<l<<" "<<a[l]<<"\n";
		}
	}
	return 0;
}