B331133131323131133132233133313233313231313233311233132313231323133313232211211
>>
B33113313132313113313223313331323331323131323331123313231323132313331323221121
<<
B331133131323131133132233133313233313231313233311233132313231323133313232211213
>>
B331133131323131133132233133313233313231313233311233132313231323133313232211212
>>