import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigInteger;
import java.text.ParseException;

public class Sin {
    public static void main(String[] args) throws IOException, ParseException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        String[] data = reader.readLine().split(":");
        int hour = Integer.parseInt(data[0]);
        int minutes = Integer.parseInt(data[1]);
        int seconds = Integer.parseInt(data[2]);

        int totalSeconds = hour * 60 * 60 + minutes * 60 + seconds;

        int steps = Integer.parseInt(reader.readLine());
        int secondsPerStep = Integer.parseInt(reader.readLine());

        BigInteger result = new BigInteger(String.valueOf(totalSeconds));
        BigInteger secondsForSteps = new BigInteger(String.valueOf(steps)).multiply(BigInteger.valueOf(secondsPerStep));

        result = result.add(secondsForSteps).mod(BigInteger.valueOf(86400));
        BigInteger outputHours = result.divide(BigInteger.valueOf(3600));
        result = result.subtract(outputHours.multiply(BigInteger.valueOf(3600)));
        BigInteger outputminutes = result.divide(BigInteger.valueOf(60));
        result = result.subtract(outputminutes.multiply(BigInteger.valueOf(60)));

        System.out.printf("Time Arrival: %02d:%02d:%02d", outputHours, outputminutes, result);
    }
}