          insert A
print
insert G


insert T
                insert C
insert AACT
          insert     AAGG
insert AACA



insert AGGT
             insert            AA
       print
insert               AGGT
print
insert AA
print
insert CT
         print
		 remove AA
		 print
    remove           T
	      search                  A
search                                AA$	  
print                    lengths
           print        stats
