B331133131323131133132233133313231323133313331331123231323133313232332211
>>
B33113313132313113313223313331323132313331333133112323132313331323233221
<<
B331133131323131133132233133313231323133313331331123231323133313232332213
>>
B331133131323131133132233133313231323133313331331123231323133313232332212
>>