B33113313132313113313223313331323133313223313231333133313311231231121   >>    B3311331313231311331322331333132313331322331323133313331331123123112   <<    B33113313132313113313223313331323133313223313231333133313311231231123   >>      B33113313132313113313223313331323133313223313231333133313311231231122   >>