B33113313132313113313223313331323132333132332133313331323133313132211
>>
B3311331313231311331322331333132313233313233213331333132313331313221
<<
B33113313132313113313223313331323132333132332133313331323133313132213
>>
B33113313132313113313223313331323132333132332133313331323133313132212
>>