B231123233313231323132233133313233313232233132313231333132333132333132322131221
>>
B23112323331323132313223313331323331323223313231323133313233313233313232213122
<<
B231123233313231323132233133313233313232233132313231333132333132333132322131223
>>
B231123233313231323132233133313233313232233132313231333132333132333132322131222
>>