import java.util.Arrays;

public class mc_q21
{
    public static void whatsItDo(String s)
    {
	int len = s.length();

	if ( len > 1 )
	{
	    String t = s.substring(0, len-1);
	    System.out.println(t);
	    whatsItDo(t);
	}
    }

    public static void main(String[] args)
    {
	whatsItDo("WATCH");
    }
}