B331133131323131133132233133313231323132333133313133313331323131133132312121
>>
B33113313132313113313223313331323132313233313331313331333132313113313231212
<<
B331133131323131133132233133313231323132333133313133313331323131133132312123
>>
B331133131323131133132233133313231323132333133313133313331323131133132312122
>>