B33113313132313113313223313331323133313223313231333133313232212111133131322221   >>    B3311331313231311331322331333132313331322331323133313331323221211113313132222   <<    B33113313132313113313223313331323133313223313231333133313232212111133131322223   >>      B33113313132313113313223313331323133313223313231333133313232212111133131322222   >>