B33113313132313113313223313331323133313223313231333132313331333133321222121   >>    B3311331313231311331322331333132313331322331323133313231333133313332122212   <<    B33113313132313113313223313331323133313223313231333132313331333133321222123   >>      B33113313132313113313223313331323133313223313231333132313331333133321222122   >>