B33113313132313113313223313331323133313223313231333133313123121111132232211   >>    B3311331313231311331322331333132313331322331323133313331312312111113223221   <<    B33113313132313113313223313331323133313223313231333133313123121111132232213   >>      B33113313132313113313223313331323133313223313231333133313123121111132232212   >>