import java.io.File;

public class JI9056145 {
	public static void main(String[] args) { 
		long start = System.currentTimeMillis(); 
		int fileCount = 0; 
		File[] files = File.listRoots(); 
		fileCount = files.length; 
		String[] rootPaths = new String[fileCount]; 
		int index = 0; 
		for (File file : files) { 
			String rootPath = file.getAbsolutePath(); 
			rootPaths[index++] = rootPath; 
		} 
		long end = System.currentTimeMillis(); 
		System.out.println("Took " + ((end - start)/1000.0) + " seconds"); 
		System.out.println("Here are the root paths:"); 
		for (String path : rootPaths) { 
			System.out.println(path); 
		} 
	} 
}