B33113313132313113313223313331323132313331333133112111113232233111   >>    B3311331313231311331322331333132313231333133313311211111323223311   <<    B33113313132313113313223313331323132313331333133112111113232233113   >>      B33113313132313113313223313331323132313331333133112111113232233112   >>