B331133131323131133132233133313231323132333133313133313331323123133312121
>>
B33113313132313113313223313331323132313233313331313331333132312313331212
<<
B331133131323131133132233133313231323132333133313133313331323123133312123
>>
B331133131323131133132233133313231323132333133313133313331323123133312122
>>