B33113313132313113313223313331323133313223313231333133313232212111113113113121   >>    B3311331313231311331322331333132313331322331323133313331323221211111311311312   <<    B33113313132313113313223313331323133313223313231333133313232212111113113113123   >>      B33113313132313113313223313331323133313223313231333133313232212111113113113122   >>