import java.io.*;
import java.util.*;

public class StudentGrades {

	public static void parseLine(String line) {
		Scanner parse = new Scanner(line);
		String email = parse.next();
		String lname = parse.next();
		String fname = parse.next();
		double sum=0.0;
		int min=Integer.MAX_VALUE;
		int max=Integer.MIN_VALUE;
		int cnt=0;
		while (parse.hasNextInt()) {
			int next = parse.nextInt();
			sum += next;
			if (next<min) {
				min=next;
			}
			if (next>max) {
				max=next;
			}
			cnt++;
		}
		double avg=0.0;
		if (cnt!=0) {
			avg = sum / cnt;
		}
		parse.close();
		System.out.printf("%s %s (%s): low of %d, high of %d, average of %.2f\n", fname, lname, email, min, max, avg);
	}
	
	public static void main(String[] args) throws FileNotFoundException {
		Scanner file = new Scanner(new File("grades.txt"));
		
		while (file.hasNextLine()) {
			String line = file.nextLine();
			parseLine(line);
		}
		file.close();
	}

}