import java.util.*;
import java.text.*;

public class zad1030
    {
        public static void main(String[] args)
            {
                double alpS1, alpS2, alpD1, alpD2, l, r=6875/2.0, a, b, c;
                String s, res, sh="0123456789";
                Scanner cin=new Scanner(System.in);
                NumberFormat f=NumberFormat.getInstance(Locale.UK);
                f.setMinimumFractionDigits(2);
                f.setMaximumFractionDigits(2);
                while (cin.hasNext())
                    {
                        cin.nextLine();
                        cin.nextLine();
                        cin.nextLine();
                        s=cin.nextLine();
                        while (sh.indexOf(s.substring(0, 1))<0)
                            {
                                s=s.substring(1);
                            }
                        a=Integer.parseInt(s.substring(0, s.indexOf("^")));
                        s=s.substring(s.indexOf("^")+1);
                        b=Integer.parseInt(s.substring(0, s.indexOf("'")));
                        s=s.substring(s.indexOf("'")+1);
                        c=Integer.parseInt(s.substring(0, s.indexOf("\"")));
                        s=s.substring(s.indexOf("\"")+1);
                        alpS1=Math.toRadians(a+b/60.0+c/3600.0);
                        if (s.substring(0, 3)==" SL") alpS1=-alpS1;
                        s=cin.nextLine();
                        while (sh.indexOf(s.substring(0, 1))<0)
                            {
                                s=s.substring(1);
                            }
                        a=Integer.parseInt(s.substring(0, s.indexOf("^")));
                        s=s.substring(s.indexOf("^")+1);
                        b=Integer.parseInt(s.substring(0, s.indexOf("'")));
                        s=s.substring(s.indexOf("'")+1);
                        c=Integer.parseInt(s.substring(0, s.indexOf("\"")));
                        s=s.substring(s.indexOf("\"")+1);
                        alpD1=Math.toRadians(a+b/60.0+c/3600.0);
                        if (s.substring(0, 3)==" WL") alpD1=-alpD1;
                        cin.nextLine();
                        s=cin.nextLine();
                        while (sh.indexOf(s.substring(0, 1))<0)
                            {
                                s=s.substring(1);
                            }
                        a=Integer.parseInt(s.substring(0, s.indexOf("^")));
                        s=s.substring(s.indexOf("^")+1);
                        b=Integer.parseInt(s.substring(0, s.indexOf("'")));
                        s=s.substring(s.indexOf("'")+1);
                        c=Integer.parseInt(s.substring(0, s.indexOf("\"")));
                        s=s.substring(s.indexOf("\"")+1);
                        alpS2=Math.toRadians(a+b/60.0+c/3600.0);
                        if (s.substring(0, 3)==" SL") alpS2=-alpS2;
                        s=cin.nextLine();
                        while (sh.indexOf(s.substring(0, 1))<0)
                            {
                                s=s.substring(1);
                            }
                        a=Integer.parseInt(s.substring(0, s.indexOf("^")));
                        s=s.substring(s.indexOf("^")+1);
                        b=Integer.parseInt(s.substring(0, s.indexOf("'")));
                        s=s.substring(s.indexOf("'")+1);
                        c=Integer.parseInt(s.substring(0, s.indexOf("\"")));
                        s=s.substring(s.indexOf("\"")+1);
                        alpD2=Math.toRadians(a+b/60.0+c/3600.0);
                        if (s.substring(0, 3)==" WL") alpD2=-alpD2;
                        l=r*Math.acos(Math.sin(alpS1)*Math.sin(alpS2)+Math.cos(alpS1)*Math.cos(alpS2)*Math.cos(alpD1-alpD2));
                        l=Math.round(l*100)/100.0;
                        res=f.format(l);
                        System.out.println("The distance to the iceberg: "+res+" miles.");
                        if (100.0-l>=0.01) System.out.println("DANGER!");
                        cin.nextLine();
                    }
            }
    }

Edited by author 12.02.2010 21:06