/* package whatever; // don't place package name! */

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

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		double s = 0, p = 1, a = 0;
		for( int i = 0; i < n ; i++ ){
			a = in.nextInt();
			s += a;
			p *= a;
		}
		System.out.println(s);
		System.out.print(p);
	}
}