#include<iostream>
#include<iomanip>

using namespace std;

double calcAverage(double num1, double num2, double num3, double num4, double num5);

int main() {
	double test1;
	double test2;
	double test3;
	double test4;
	double test5;
	double avg;

	cout << "Enter test 1: ";
	cin >> test1;

	cout << "Enter test 2: ";
	cin >> test2;

	cout << "Enter test 3: ";
	cin >> test3;

	cout << "Enter test 4: ";
	cin >> test4;

	cout << "Enter test 5: ";
	cin >> test5;

	avg = calcAverage(test1, test2, test3, test4, test5);

	cout << fixed << setprecision(1);
	cout << "The average is: " << avg << endl;

	return 0;
}

double calcAverage(double num1, double num2, double num3, double num4, double num5) {
	return (num1 + num2 + num3 + num4 + num5) / 5;
}