B33113313132313113313223313331323331311113313231333132322331323132313232221121   >>    B3311331313231311331322331333132333131111331323133313232233132313231323222112   <<    B33113313132313113313223313331323331311113313231333132322331323132313232221123   >>      B33113313132313113313223313331323331311113313231333132322331323132313232221122   >>