B33113313132313113313223313331323132333132322331333133313231313111   >>    B3311331313231311331322331333132313233313232233133313331323131311   <<    B33113313132313113313223313331323132333132322331333133313231313113   >>      B33113313132313113313223313331323132333132322331333133313231313112   >>