#include <iostream>
#include <fstream>
#include <string>

using namespace std;

struct Workers
{
	double salary;
	string name;
};

int main()
{
	ifstream fin;
	fin.open("3.txt");

	int n;
	fin >> n;
	Workers *workers = new Workers[n];
	double averageSalary = 0.0;
	for (int i = 0; i < n; i++)
	{
		fin >> workers[i].salary >> workers[i].name;
		averageSalary += workers[i].salary;
	}
	fin.close();

	for (int i = 0; i < n; i++)
		cout << workers[i].salary << " " << workers[i].name << endl;
	averageSalary /= n;
	cout << "Average salary is " << averageSalary << endl;
	delete[] workers;

	return 0;
}