B331133131323131133132233133313231323132333133313111333131133131333121
>>
B33113313132313113313223313331323132313233313331311133313113313133312
<<
B331133131323131133132233133313231323132333133313111333131133131333123
>>
B331133131323131133132233133313231323132333133313111333131133131333122
>>