B33113313132313113313223313331323132313331313232233132322121111
>>
B3311331313231311331322331333132313231333131323223313232212111
<<
B33113313132313113313223313331323132313331313232233132322121113
>>
B33113313132313113313223313331323132313331313232233132322121112
>>