B33113313132313113313223313331323133313223313231333133313232223221212131   >>    B3311331313231311331322331333132313331322331323133313331323222322121213   <<    B33113313132313113313223313331323133313223313231333133313232223221212133   >>      B33113313132313113313223313331323133313223313231333133313232223221212132   >>