B3311331313231311331322331333132313331323223312113313331333133313331213231211
>>
B331133131323131133132233133313231333132322331211331333133313331333121323121
<<
B3311331313231311331322331333132313331323223312113313331333133313331213231213
>>
B3311331313231311331322331333132313331323223312113313331333133313331213231212
>>