dump
insert r_r 	    -1 -20 3 4
insert rec 	    7 -8 1 3
insert virtual_rec0 1 1 0 0
insert virtual_REC0 0 0 11 0
insert inExistRec_0 1 1 -1 -2

insert r1 10 10 5 5

  regionsearch   11 11                 0 0

insert r2 15 15 5 5	
insert r3 7 7 10 10
insert r4 20 25 7 9
insert r4 20 12 3 3
insert r5 6 7 11 9

dump

insert r10 100 100 1000 10
insert r11 100 100 10 1000
insert r12 108 136 55 103
insert r13 360 968 7110 354
insert r14 120 117 93 706
insert r15 120 117 93 706
   
remove r_r
remove inExistRec 

search     r4    

	remove r4
	dump
	remove 6 7 11 9
	remove r5
	dump
	
  search   r14   
  search r11
       search R11

remove r10
remove r11
remove r12
remove r13
remove 120 117 93 706
remove 100 100 1000 10
remove r14

regionsearch   -5 -5 20 20 
intersections 
dump
search r2
search r4