#include <iostream>

using namespace std;

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

int main()
{
	// 1. declare obj. or variables
	StudentRec x, y, z;
	//2. input
	x.name = "John Wang";
	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;
	if( x.avg > 90 )
		x.grade = 'A';
	else if ( x.avg > 80 )
		x.grade = 'B';
	else
		x.grade = 'p';	
	y = x;			// aggregate operations: assignment
	cout << "Input name: ";
	getline(cin, y.name);
	//4. output
	cout << "The name: " << y.name << ", scores: "
		<< x.scores[0] << ", " << x.scores[1] << ", "
		<< x.scores[2] << endl;
	cout << "The average: " << x.avg << endl;
	cout << "The grade: " << x.grade << endl;
 
	cout << "\n\n ------------------------- \n\n Done." << endl;
	return 0;
}