B23112323331323132313223313331323331323223313231323133313331323223312111
>>
B2311232333132313231322331333132333132322331323132313331333132322331211
<<
B23112323331323132313223313331323331323223313231323133313331323223312113
>>
B23112323331323132313223313331323331323223313231323133313331323223312112
>>