B33113313132313113313223313331323133313231333132333133313223313331321123231211   >>    B3311331313231311331322331333132313331323133313233313331322331333132112323121   <<    B33113313132313113313223313331323133313231333132333133313223313331321123231213   >>      B33113313132313113313223313331323133313231333132333133313223313331321123231212   >>