import java.util.HashMap;
import java.util.Scanner;
import java.util.TreeMap;

public class _04Problem {

    public static void main(String[] args) {
        Scanner scn = new Scanner(System.in);
        int n = scn.nextInt();
        HashMap<String, TreeMap> orders = new HashMap<String, TreeMap>();
        TreeMap<String, Integer> nameAndAmount = new TreeMap<String, Integer>();
        for (int i = 0; i < n; i++) {
            String customer = scn.next();
            int amount = scn.nextInt();
            String product = scn.nextLine();
            Integer count = nameAndAmoun.get(customer);
            nameAndAmoun.put(customer, count == null? amount : count + amount);
            orders.put(product, nameAndAmoun);
        }

    }

}