B33113313132313113313223313331323133313223313231333133313232212111111223311311   >>    B3311331313231311331322331333132313331322331323133313331323221211111122331131   <<    B33113313132313113313223313331323133313223313231333133313232212111111223311313   >>      B33113313132313113313223313331323133313223313231333133313232212111111223311312   >>