B3311331313231311331322331333132333133313223331211331333133313231323123123121
>>
B331133131323131133132233133313233313331322333121133133313331323132312312312
<<
B3311331313231311331322331333132333133313223331211331333133313231323123123123
>>
B3311331313231311331322331333132333133313223331211331333133313231323123123122
>>