POJ1004-Financial Management

#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
	double sum = 0.0, month;
	for (int i = 0; i < 12; i++) {
		cin >> month;
		sum += month;
	}
	cout << "$" << fixed << setprecision(2) << sum / 12.0;
	return 0;
}