B33113313132313113313223313331323133313223313231333133313311233132211311   >>    B3311331313231311331322331333132313331322331323133313331331123313221131   <<    B33113313132313113313223313331323133313223313231333133313311233132211313   >>      B33113313132313113313223313331323133313223313231333133313311233132211312   >>