Sense of Doubt
|---------------------------12-----13----
|---------------------------12-----13----
|---------------------------13-----14----
|----------------------------------------
|----------------------------------------
|3-2-1-0-------3-2-1-0-------------------
|---------------------------5-------7---7-10---10----12--
|---------------------------6-------8--8-------------12--
|---------------------------5-------7-7--------------13--
|--------------------------------------------------------
|--------------------------------------------------------
|3-2-1-0-------3-2-1-0-----------------------------------
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