Total

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Scanner;
import java.util.TreeMap;

public class Total {
  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    Map<Calendar, Integer> total_of_day = new TreeMap<Calendar, Integer>();
    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
    while (in.hasNextLine()) {
      String[] c1 = in.nextLine().split(",");
      Calendar c = GregorianCalendar.getInstance();
      try {
        c.setTime(format.parse(c1[0]));
      } catch (ParseException e) {
        e.printStackTrace();
      }
      String[] c2 = c1[1].split(":");
      int amount = new Integer(c2[1]);
      if (total_of_day.get(c) == null) {
        total_of_day.put(c, 0);
      }
      total_of_day.put(c, total_of_day.get(c) + amount);
    }
    in.close();
    for (Entry<Calendar, Integer> e : total_of_day.entrySet()) {
      System.out.format("%tY-%tm-%td\t%d\n", e.getKey(), e.getKey(), e.getKey(), e.getValue());
    }
  }
}