#include <iostream>
#include <string>

using namespace std;

int main() {

	int n;
	cin >> n;
	string input;
	//cin >> input;

	cin.ignore();
	getline(cin, input);

	int counter = 0;
	double gradeSum = 0;
	double average = 0;
	int countGrade = 0;

	cout.setf(ios::fixed);
	cout.precision(2);


	while (input != "Finish")
	{

		while (counter < n)
		{
			countGrade++;
			counter++;
			double grade;
			cin >> grade;
			gradeSum += grade;
			average += grade;
		}
		counter = 0;
		//average += gradeSum/;
		cout << input << " - " << gradeSum / n << "." << endl;
		gradeSum = 0;
		cin.ignore();
		getline(cin, input);
	}

	cout << "Student's final assessment is " << average/ countGrade << ".";

	return 0;
}