/*
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

/*
    Copyright 2011 Joe Robinson <joe@lc8n.com>
    based on code by Jamie Walters <jagw@jagw.co.uk>
    based on code by  Joe Robinson <joe@lc8n.com>
*/


import java.net.URL;
import java.net.URLConnection;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;

public class blaconvert {

	public static void main(String[] args) throws IOException
	{
        String sourceUnit = "";
        String targetUnit = "";
        String amount = "";
		/* Build query from query or arguments, depending on whether
		   arguments were given. */
		if (args.length == 0) {
		try {
			BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
			String[] split = br.readLine().split(" ");
			amount = split[0];
			sourceUnit = split[1];
			targetUnit = split[3];

			} catch (Exception e) {
				System.err.println("Error:" + e.getMessage());
				System.exit(1);
			}
		} else {
			amount = args[0];
			sourceUnit = args[1];
			targetUnit = args[2];
		}
        

		//URL which provides XML response
		URL url = new URL("http://www.google.com/ig/calculator?hl=en&q="+amount+sourceUnit+"=?"+targetUnit);
		URLConnection urlc = url.openConnection();

		BufferedReader br = new BufferedReader(new InputStreamReader(urlc.getInputStream()));
		String line;
		String[] lines;
		String tempString = "";
		String lhs = "";
		String rhs = "";
		String error = "";
		//Read every line
		while ((line = br.readLine()) != null)
		{
			// Splits the google output by the commas
			lines = line.split(",");
			
			for(int i=0; i<lines.length; i++){
				//System.out.println(lines[i]);
				// Get the useful information (the urls!)
				if(lines[i].trim().startsWith("{lhs")){
					tempString = lines[i];
					// Blat the non-url information
					lhs = tempString.substring(7, tempString.length()-1);
				}
               			else if(lines[i].trim().startsWith("rhs")){
					tempString = lines[i];
					// Blat the non-url information
					rhs = tempString.substring(6, tempString.length()-1);
				}
				else if(lines[i].trim().startsWith("error")){
					tempString = lines[i];
					// Blat the non-url information
					error = tempString.substring(8, tempString.length()-1);
				}

			}

		}
		
		String[] parts = rhs.split(" ");
		String result = "";
		
		//Convert weird output into something that makes sense
		for (int i = 0; i < parts.length; i++)
		{
			//System.out.println(parts[i]);
			if (parts[i].equals("\\x26#215;"))
			{
				parts[i] = "*";
			} else if (parts[i].startsWith("10\\"))
			{
				String[] exp = parts[i].split("\\\\");
				parts[i] = "10^"+exp[2].substring(3, exp[2].length());
			}
			result += parts[i]+" ";
		}
		
		// Print results
		if(error.isEmpty()) {

			System.out.println(lhs+" = "+result);
			System.exit(0);
			
		} else {
			if(error.equals("4"))
			{
				error = "Unknown unit";
			}
			System.out.print("Error: "+error);
			System.out.println("\n");
			System.exit(1);
		}

	}

}