B33113313132313113313223313331323133313221211331333133313232223221221   >>    B3311331313231311331322331333132313331322121133133313331323222322122   <<    B33113313132313113313223313331323133313221211331333133313232223221223   >>      B33113313132313113313223313331323133313221211331333133313232223221222   >>