package pack;
import java.util.Scanner;

public class Umrechnen
{
    private static final Scanner scanner = new Scanner(System.in);
    public static void main(String[] args)
    {
        System.out.println("Anfangs Stunden");
        int n = scanner.nextInt();
        scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");

        System.out.println("Anfangs Minuten");
        int b = scanner.nextInt();
        scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");

        System.out.println("Ende Stunden");
        int c = scanner.nextInt();
        scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");

        System.out.println("Ende Minuten");
        int d = scanner.nextInt();
        scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");

        scanner.close();

        int anstd = n;
        int anmin = b;
        int min;
        int std;

        if(b < d)
        {
            min = d - b;
            std = (24 - n) + c;
        }
        else
        {
            min = (60 - b) + d;
            std = (24 - n) + c - 1;
        }

        std = std / 2 ;
        min = min / 2;

        if ((std * 2) % 2 == 0)
        {
            min = min;
        }
        else
        {
            min += 30;
        }

        System.out.println(std);
        System.out.println(min);

        System.out.println(anstd);
        System.out.println(anmin);
        int Stunden = std + anstd;
        int Minuten = min + anmin;

        if(Stunden >= 24)
            Stunden = 24 - Stunden;

        System.out.println(Stunden);
        System.out.println(Minuten);
    }
}