import java.util.Scanner;
import java.io.InputStreamReader;

import java.lang.String;

class ibm {

 public static void main(String args[]) {
  String[] d = new String[100];
  int[] a = new int[100];
  int[] c = new int[100];
  String input;
  int count = 0;
  int ik = 0;
  System.out.println("NOTE:To exit the infinite loop type exit");

  Scanner scanner = new Scanner(new InputStreamReader(System.in));
  do {

   String[] temp = new String[100];

   input = scanner.nextLine(); //to read the lines of text entered by the user
   if ((input.equalsIgnoreCase("exit")) == true) //to check whethe the user typed exit
    break;

   String[] words = input.split(","); //split the lines of text based on cama

   int dflag = 0; //flag variable to check same date already exists
   int flag = 0; //flag variable to check same product id already exists in same date

   if (count == 0) {
    d[count] = words[0]; //store the date
    // System.out.println(d[count]);
    a[count] = Integer.parseInt(words[1]); //store the quantity
    // System.out.println("total"+a[count]);

    temp[ik] = words[2]; //store the producct id
    c[count]++; //increment uinque product count
    count++; //incremetn unique date count
    ik++; //increment unique date count pointer
   } else {
    int i;
    for (i = 0; i < count; i++) {
     if (words[0].equals(d[i]) == true) //to check date alreadyu exists in array a
     {

      a[i] += Integer.parseInt(words[1]); //sum up the qauntites on same date
      //System.out.println("same1"+a[i]);

      dflag = 1; //set flag varible as date already exists
      break;
     }
    }

    if (dflag == 1) //if date exists
    {
     int j;
     for (j = 0; j < ik; j++) //check same priduct id exists
     {
      if (words[2].equals(temp[j]) == true) {
       flag = 1;
       break;
      }
     }
     if (flag == 0) //if same product id does not exists
     {
      temp[ik] = words[2]; //store product id
      //System.out.println("same2"+temp[ik++]);
      c[i]++; //increment unique product count
      ik++; //increment product count pointer

     }
    } else {
     //if same does not exists
     d[count] = words[0]; //store date
     //System.out.println(d[count]);
     a[count] = Integer.parseInt(words[1]); //store the quantity sold in first time on that date
     temp[ik] = words[2]; //store the product id
     c[count]++; //increment unique product count
     count++; //increment date count

    }
   }
  } while (true);


  //the following lines of code is to display the output
  for (int i = 0; i < count; i++) {
   System.out.print(d[i] + ",");
   double p = a[i];
   double k = c[i];
   System.out.printf("%.2f", (p / k));
   System.out.println("," + c[i]);

  }

 }
}