#include <iostream>
    #include <string>
    using namespace std;

class Data{
	public:
		//calculates average
		float average(int x, int y, int z){
			float average;

			average = (x + y + z)/3;

			return average;
		}

		//asigns letter grade
		char grade(float x){
			char grade;

			if (x >= 90){
				grade = 'A';
			}
				else if(x >= 80){
					grade = 'B';
				}
					else if(x >= 70){
						grade = 'C';
					}
						else if(x >= 60){
							grade = 'D';
						}
							else{
								grade = 'F';
							}

		return grade;
		}

		struct studentType {
    		string name;
    		int ID;
    		int test[3];
    		float average;
    		char grade;
		};

		//data entry
		studentType Input(){
			studentType newStudent;
			cout << "\n\t\t Please enter student information" << endl;

			cout << "\n enter Name: \t\t\t";
			cin >> newStudent.name;

			cout << "\n enter student ID: \t\t";
			cin >> newStudent.ID;

			cout << "\n enter first test grade: \t";
			cin >> newStudent.test[0];

			cout << "\n enter second test grade: \t";
			cin >> newStudent.test[1];

			cout << "\n enter third test grade: \t";
			cin >> newStudent.test[2];

			newStudent.average = average(newStudent.test[0], newStudent.test[1], newStudent.test[2]);

			newStudent.grade = grade(newStudent.average);

			return newStudent;
		}
};

     //driver
int main()
{
	Data Info;
	Info.studentType newStudent;
	newStudent = Info.Input();

		//output
		cout <<"\n\n\tStudent Name :\t" << newStudent.name << endl;
		cout <<"\tID Number :\t" << newStudent.ID << endl;
		cout <<"\tTests :" << endl;
		cout <<"\t\t1- " << newStudent.test[0] << endl;
		cout <<"\t\t2- " << newStudent.test[1] << endl;
		cout <<"\t\t3- " << newStudent.test[2] << endl;
		cout <<"\tAverage :\t" << newStudent.average << endl;
		cout <<"\tGrade :\t" << newStudent.grade;

		if (newStudent.average >= 70){
			cout <<"\tYou Passed." << endl;
		}
		else{
			cout <<"\tYou Failed." << endl;
		}


	return 0;
}