View Code of Problem 140

import java.util.*;
import java.math.*;
public class Main {
	public static void main (String[] args) {
		Scanner in = new Scanner(System.in);
		double sum = 0;
		for(int i =0;i<12;i++) {
			sum+=in.nextDouble();
		}
		System.out.println("$"+String.format("%.2f", sum/12));
	}
}