B33113313132313113313223313331323133313223313231333133313231323232123231221   >>    B3311331313231311331322331333132313331322331323133313331323132323212323122   <<    B33113313132313113313223313331323133313223313231333133313231323232123231223   >>      B33113313132313113313223313331323133313223313231333133313231323232123231222   >>