B331133131323131133132233133313231323223313231313331333132313232313232121
>>
B33113313132313113313223313331323132322331323131333133313231323231323212
<<
B331133131323131133132233133313231323223313231313331333132313232313232123
>>
B331133131323131133132233133313231323223313231313331333132313232313232122
>>