codexio_ColoredBalls

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String input;
        String color;
        int count;
        int absoluteCount = 0;
        int result = 0;
        String colorCheck = "transparent";

        while (scanner.hasNextLine()) {
            input = scanner.nextLine();

            if (input.equalsIgnoreCase("end")) {
                break;
            }

            String[] inputLine = input.split(":");
            color = inputLine[0].trim();
            count = Integer.parseInt(inputLine[1].trim());
            absoluteCount += count;
            if (colorCheck.equalsIgnoreCase(color)) {
                result = 0;
            } else {
                result = absoluteCount - 1;
            }
            colorCheck = color;
        }
        System.out.println(result);
    }
}