B33113313132313113313223313331323331333132313321133133313331323232133313232121   >>    B3311331313231311331322331333132333133313231332113313331333132323213331323212   <<    B33113313132313113313223313331323331333132313321133133313331323232133313232123   >>      B33113313132313113313223313331323331333132313321133133313331323232133313232122   >>