B33113313132313113313223313331323133313223313231333133313311231212113121   >>    B3311331313231311331322331333132313331322331323133313331331123121211312   <<    B33113313132313113313223313331323133313223313231333133313311231212113123   >>      B33113313132313113313223313331323133313223313231333133313311231212113122   >>