B331133131323131133132233133313231323132333133313113313131331121
>>
B33113313132313113313223313331323132313233313331311331313133112
<<
B331133131323131133132233133313231323132333133313113313131331123
>>
B331133131323131133132233133313231323132333133313113313131331122
>>