import java.io.File;
import java.io.IOException;
import java.util.Scanner;
import java.io.FileReader;
public class Ch9 {

    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
//      File file = new File("data.txt");
       File file = new File("data.txt");
       Scanner input = new Scanner(file); //new scanner input to collect data from existing file
       String lastName;
       String firstName;
       char letterGrade;
       int score;
       Student[] Student = new Student[20];

       int i = 0;
       while(i < 20)
       {
            lastName = input.next();
            firstName  = input.next();
            score = input.nextInt();

           Student[i] = new Student(lastName, firstName, score);
           Student[i].setFirstName(firstName);
           Student[i].setLastName(lastName);
           Student[i].setScore(score);

           i++;
       }

       for(int index = 0; index < 20; index++)
       {
           if(Student[index].getScore() >= 90)
           {
               letterGrade[index] = "A";
           }
       }



       for(int j = 0; j < 20 ; j++)
       {
       System.out.print(Student[j].getFirstName());
       System.out.print(", ");
       System.out.print(Student[j].getLastName());
       System.out.println();
//     System.out.println(Student[j].getScore());
       }
    }


}