B33113313132313113313223313331323133311211312111112111133132322133313221321   >>    B3311331313231311331322331333132313331121131211111211113313232213331322132   <<    B33113313132313113313223313331323133311211312111112111133132322133313221323   >>      B33113313132313113313223313331323133311211312111112111133132322133313221322   >>