B33113313132313113313223313331323133313223313231333133313233213331312121   >>    B3311331313231311331322331333132313331322331323133313331323321333131212   <<    B33113313132313113313223313331323133313223313231333133313233213331312123   >>      B33113313132313113313223313331323133313223313231333133313233213331312122   >>