B331133131323131133132233133313231323133313132322331323132211331
>>
B33113313132313113313223313331323132313331313232233132313221133
<<
B331133131323131133132233133313231323133313132322331323132211333
>>
B331133131323131133132233133313231323133313132322331323132211332
>>