B33113313132313113313223313331323133313223313231333133313331333132313123211211
>>
B3311331313231311331322331333132313331322331323133313331333133313231312321121
<<
B33113313132313113313223313331323133313223313231333133313331333132313123211213
>>
B33113313132313113313223313331323133313223313231333133313331333132313123211212
>>