B33113313132313113313223313331323331333132233312113313331333132313231231111   >>    B3311331313231311331322331333132333133313223331211331333133313231323123111   <<    B33113313132313113313223313331323331333132233312113313331333132313231231113   >>      B33113313132313113313223313331323331333132233312113313331333132313231231112   >>