//代码如下

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