B23112323331323132313223313331323331323223313231323133313233313233313121111111
>>
B2311232333132313231322331333132333132322331323132313331323331323331312111111
<<
B23112323331323132313223313331323331323223313231323133313233313233313121111113
>>
B23112323331323132313223313331323331323223313231323133313233313233313121111112
>>