B231123233313231323132233133313233313232233132313231333133313231313233311211
>>
B23112323331323132313223313331323331323223313231323133313331323131323331121
<<
B231123233313231323132233133313233313232233132313231333133313231313233311213
>>
B231123233313231323132233133313233313232233132313231333133313231313233311212
>>