#include <iostream>
#include <cmath>
#include <iomanip>
#include <cctype>
#include <string>
#include <fstream>

using namespace std;

void displayResult(string sName, int test1, int test2, int test3,
				   int test4, int test5, double sAvg, char sGrade)
{
	ifstream in;
	ofstream out;

	out << left << fixed << showpoint << setprecision(1);

	out << sName << "\t\t" << test1 << "\t" << test2 << "\t" << test3 << "\t"
		 << test4 << "\t" << test5 << "\t" << sAvg << "\t" << sGrade << endl;

}

char calcGrade(double sAvg)
{
	char sGrade;

		if (sAvg >= 90 && sAvg <= 100)
			sGrade = 'A';
		else if (sAvg >= 80 && sAvg <= 89.9)
			sGrade = 'B';
		else if (sAvg >= 70 && sAvg <= 79.9)
			sGrade = 'C';
		else if (sAvg >= 60 && sAvg <= 69.9)
			sGrade = 'D';
		else if (sAvg >= 0 && sAvg <= 59.9)
			sGrade = 'F';
		else
			sGrade = 'Q';
			

	return sGrade;

}

void calcAvg(string sName, int test1, int test2, int test3, int test4, int test5)
{
	double sAvg = ((test1 + test2 + test3 + test4 + test5) / 5.00);

	char sGrade = calcGrade(sAvg);

	displayResult(sName, test1, test2, test3, test4, test5, sAvg, sGrade);
	
}

void getData(ifstream& in, string sName, int test1, int test2, int test3,
			 int test4, int test5, double sAvg, char sGrade)
{
	while (!in.eof())
	{
		in >> sName >> test1 >> test2 >> test3 >> test4 >> test5;
		calcAvg(sName, test1, test2, test3, test4, test5);
	}

}
	
int main()
{
	// Student Name
	string sName = " ";
	// Grade type
	char sGrade = ' ';
		// Student Average, Class Average
	double sAvg = 0, cAvg = 0;
	// Test Scores 1 through 5
	int test1 = 0, test2 = 0, test3 = 0, test4 = 0, test5 = 0;

	ifstream in;
	ofstream out;

	in.open("data.txt");
	out.open("results.txt");

	cout << "Student\t\t" << "Test1\t" << "Test2\t" << "Test3\t" << "Test 4\t"
		 << "Test 5\t" << "Average\t" << "Grade\t" << endl;

	getData(in, sName, test1, test2, test3, test4, test5, sAvg, sGrade);

	in.close();
	out.close();

	return 0;
}