#include<iostream>

using namespace std;

//define a new data type
struct StudentRec
{	string name;
	int scores [3];
	float avg;
	char grade;
};

int main ()
{
	// 1. delcare object or variable
	StudentRec x, y, z;
	// 2. input
	x.name = " Amy ";
	x.scores[0] = 77;
	x.scores[1] = 90;
	x.scores[2] = 99;
	// 3. computing
	x.avg = (x.scores[0] + x.scores[1] + x.scores[2])/3.0 ;

	// 4. output
	cout << "Student name:  "  << x.name << endl;
	cout << "Scores:  " << x.scores[0] << ", " <<  x.scores[1] << ", "
				 << x.scores[2] << endl;

	cout << "Test average:   " << x.avg << endl;
	if(x.avg > 90)
		x.grade = 'A';
	else if (x.avg > 80)
		x.grade = 'B';
	else if (x.grade > 70)
		x.grade = 'C';
	else if (x.grade > 60)
		 x.grade = 'D';
	else 
		x.grade = 'F' ;
 	cout << "Student's grade:  " << x.grade << endl;
	cout << "Done." << endl;
	
	return 0;
};