B231123233313231323132233133313233313232233132313231333132333132333131121131211
>>
B23112323331323132313223313331323331323223313231323133313233313233313112113121
<<
B231123233313231323132233133313233313232233132313231333132333132333131121131213
>>
B231123233313231323132233133313233313232233132313231333132333132333131121131212
>>