#include <iostream>

const int students = 10;
using namespace std;

int main()
{
    int arr[students], i = 0, count = 0;
    char str[students], ch;

    do
    {
        cout << "Please Enter Grade of student " << i+1 << ": ";
        cin >> ch;
        if(ch=='A'||ch=='B'||ch=='a'||ch=='b')
        {
            str[i]=ch;
            if(ch == 'A'|| ch == 'a')
                count++;
            i++;
        }
        else
            cout << "Please Enter 'A' or 'B' only" << endl;
    } while(i < 10);
    cout << "Total No. of A Grades: " << count << endl;
    if(count <= 2)
        cout << "\"Your class is Poor!\"" << endl;
    else if(count <= 7)
        cout << "\"Your class is Good!\"" << endl;
    else if(count >= 8)
        cout << "\"Your class is Brilliant!\"" << endl;
    cout << "Press any key to continue... ";
    cin.ignore();
    cin.get();
    return 0;
}