B33113313132313113313223313331323132322331323222233132333312121   >>    B3311331313231311331322331333132313232233132322223313233331212   <<    B33113313132313113313223313331323132322331323222233132333312123   >>      B33113313132313113313223313331323132322331323222233132333312122   >>