#include "Course.h"
#include "Student.h"
#include <iostream>
#include <iomanip>
using namespace std;

void printAve(Student stuArray[]) {
    int a = 0, b = 0, c = 0;
    for (int i = 0; i < Student::getNumOfStu(); i++) {
        stuArray[i].printStudent();
        a += stuArray[i].getCourse().getMath();
        b += stuArray[i].getCourse().getEnglish();
        c += stuArray[i].getCourse().getComputer();
    }
    cout << "mathAverage:" << fixed << setprecision(1) << ((float)a/Student::getNumOfStu())<< endl;
    cout << "englishAverage:" << fixed << setprecision(1) << ((float)b/Student::getNumOfStu())<< endl;
    cout << "computerAverage:" << fixed << setprecision(1) << ((float)c/Student::getNumOfStu())<< endl;
}

int main(){
	Student ss[5];
	int n;
	cin >> n;
	for (int i = 0; i < n; i++) {
	    string a, b;
	    int c, d, e;
	    cin >> a >> b >> c >> d >> e;
	    ss[i] = Student(a,b,Course(c,d,e));
	}
	printAve(ss);
	return 0;
}