B33113313132313113313223313331323133313223313231333133313123223311231   >>    B3311331313231311331322331333132313331322331323133313331312322331123   <<    B33113313132313113313223313331323133313223313231333133313123223311233   >>      B33113313132313113313223313331323133313223313231333133313123223311232   >>