Financial Management POJ - 1004

#include <iostream>
#include <cstdio>
#include <iomanip>
#include <cmath>

using namespace std;

int main()
{
    double sum=0.0;
    double now=0.0;
    while(cin>>now){
        sum+=now;
        for(int i=0;i<11;i++){
            cin>>now;
            sum+=now;
        }
        cout<<fixed<<setprecision(2)<<'$'<<sum/12.0<<endl;
        sum=0.0;
        break;

    }

    return 0;
}