B33113313132313113313223313331323132333132313331311213331323133313232221223321   >>    B3311331313231311331322331333132313233313231333131121333132313331323222122332   <<    B33113313132313113313223313331323132333132313331311213331323133313232221223323   >>      B33113313132313113313223313331323132333132313331311213331323133313232221223322   >>