B3311331313231311331322331333132313331322121133133313331333131313331322312121
>>
B331133131323131133132233133313231333132212113313331333133313131333132231212
<<
B3311331313231311331322331333132313331322121133133313331333131313331322312123
>>
B3311331313231311331322331333132313331322121133133313331333131313331322312122
>>