B33113313132313113313223313331323133313223313231333133313311221133132312311311   >>    B3311331313231311331322331333132313331322331323133313331331122113313231231131   <<    B33113313132313113313223313331323133313223313231333133313311221133132312311313   >>      B33113313132313113313223313331323133313223313231333133313311221133132312311312   >>