B33113313132313113313223313331323133313221211331333133313232233132222221   >>    B3311331313231311331322331333132313331322121133133313331323223313222222   <<    B33113313132313113313223313331323133313221211331333133313232233132222223   >>      B33113313132313113313223313331323133313221211331333133313232233132222222   >>