/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		String str = "This is a test\nAnother test\n#art\n#paintings#collections";
 
		System.out.println(str + "\n--------------------");
        String tag_name ="";
        String[] sp = str.split(" |\n");
        for (int j =0; j<sp.length; j++) {
            //System.out.println(""+sp[j]);
            if ( String.valueOf(sp[j].charAt(0)).equals("#")) {                
                tag_name = sp[j];
                String[] np = tag_name.split("#");
                for (int k = 0; k<np.length; k++) {
                    if(np[k].length() >0 ) {
                        tag_name = np[k].replaceAll("\n", "");
                        System.out.println(""+ np[k]);
                    }
                }                
                //System.out.println("" + tag_name);
            }
        }
 
	}
}

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