B33113313132313113313223313331323331323121123313233313232231211   >>    B3311331313231311331322331333132333132312112331323331323223121   <<    B33113313132313113313223313331323331323121123313233313232231213   >>      B33113313132313113313223313331323331323121123313233313232231212   >>