11945 - Financial Management

                           /*in the name of Allah */


# include <list>
# include <deque>
# include <bitset>
# include <algorithm>
# include <functional>
# include <numeric>
# include <utility>
# include <sstream>
# include <iostream>
# include <iomanip>
# include <cstdio>
# include <cmath>
# include <cstdlib>
# include <ctime>
# include <set>
# include <map>
# include <cmath>
# include <queue>
# include <limits>
# include <stack>
# include <vector>
# include <cstring>
# include <cstdio>
using namespace std;

# define MEM(array,w)   memset(array,w,sizeof array)
# define fr(i,a,b) for(int (i) = a ; i < b ; i++)
# define SET set<int>::iterator it = s.begin(); it != s.end();it++
# define ULL unsigned long long
# define eps 1e-9
# define SS stringstream
# define PR pair<int , int>
# define all(c) (c).begin(), (c).end()
# define maxint 1 << 31 - 1
# define FOR(i, a, b) for (int i=a; i<b; i++)
# define REP(i, a) FOR(i, 0, a)
# define rive(s) reverse(s.begin(),s.end())
# define OK(R,C) if(i>=0 && j>=0 && j<=C && i<=R)

template<class T> string toString(T n){ostringstream ost;ost<<n;ost.flush();return ost.str();}

int toInt(string s){int r=0;istringstream sin(s);sin>>r;return r;}

bool isprime(int n){if( n<2) return 0;for( int i=2; i*i<=n ; i++)if(n%i==0)return 0; return 1;return 0;}

int pel(string s){string t;t=s;reverse(t.begin(),t.end());if(s==t)return 1;return 0;}


int main()
{


  int n;
  cin>>n;
  int caset=0;
  while(n--)
  {
    long double sum=0.;
    for(int i=0;i<12;i++)
    {
      long double inp;
      cin>>inp;
      sum+=inp;
    }
    sum/=12;

    string s= toString(sum);

    string res="";

    rive(s);

    for(int i=0;i<s.size();i++)
    {
      res+=s[i];
    if(i>4 && i%3==2 && i!=s.size()-1)res+=",";
    }
    rive(res);

    printf("%d $",++caset);cout<<res<<endl;
}
return 0;

}