B33113313132313113313223313331323133313223313231333132313331333112211211231   >>    B3311331313231311331322331333132313331322331323133313231333133311221121123   <<    B33113313132313113313223313331323133313223313231333132313331333112211211233   >>      B33113313132313113313223313331323133313223313231333132313331333112211211232   >>