#include <iostream>
using namespace std;

class Grade {
private:
    int scores[100];
    char grades[100];
    int n;
public:
    Grade(int s[100], int count) {
        n = count;
        for (int i = 0; i < n; i++) scores[i] = s[i];
    }

    void makeGrades() {
        for (int i = 0; i < n; i++) {
            if (scores[i] >= 90) grades[i] = 'A';
            else if (scores[i] >= 80) grades[i] = 'B';
            else grades[i] = 'C';
        }
    }

    void show() {
        for (int i = 0; i < n; i++)
            cout << scores[i] << "점: " << grades[i] << endl;
    }
};

int main() {
    int n;
    cin >> n;
    int scores[100];
    for (int i = 0; i < n; i++) cin >> scores[i];
    Grade g(scores, n);
    g.makeGrades();
    g.show();
}