#include<iostream>
using namespace std;
int main() {
	int a[110],n,i,c=0;
	cin>>n;
	for(i = 1; i <= n; i++) {
		cin>>a[i];
	}
	
	for(i = 1;i <= n;i++){
		c++;
		if(i == n || a[i] != a[i + 1]){
			if(c != 1)
			cout<<a[i]<<" "<<c<<endl;
			c = 0;
		}
	}
	return 0;
}


/**************************************************************
	Problem: 1886
	User: admin
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/