B33113313132313113313223313331323133313223313231333133313231322221323121   >>    B3311331313231311331322331333132313331322331323133313331323132222132312   <<    B33113313132313113313223313331323133313223313231333133313231322221323123   >>      B33113313132313113313223313331323133313223313231333133313231322221323122   >>