java.

package szz;

import java.util.Scanner;

public class SSS {

public static void main(String[] args) {
	// TODO 自动生成的方法存根
	System.out.println(16);
	Scanner scan = new Scanner(System.in); 
	double sum = 0; 
	int m = 0; 
	while (scan.hasNextDouble()) { 
	double x = scan.nextDouble(); 
	m = m + 1; 
	sum = sum + x;

}
System.out.println(m +6 + sum);
System.out.println(m +2 + (sum / m));
scan.close();
}

}