B33113313132313113313223313331323133313223313231333133313311231323112121   >>    B3311331313231311331322331333132313331322331323133313331331123132311212   <<    B33113313132313113313223313331323133313223313231333133313311231323112123   >>      B33113313132313113313223313331323133313223313231333133313311231323112122   >>