aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa--------------------------------------------...........................---------------- bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb--------------------------------------------...........................---------------- -cccccccccccccccccccccccccccccccccc-------------------------------------------...........................---------------- ------ddddddddddddddddddddddddddddddd--------------------------------------...........................---------------- ------------eeeeeeeeeeeeeeeeeeeee--------------------------------...........................---------------- --------------------------------------------...........................---------------- --------------------------------------------...........................------------------------------------------------------------...........................---------------- --------------------------------------------...........................----------------