B3311331313231311331322331333131133132313331313232233131333132313231131211
>>
B331133131323131133132233133313113313231333131323223313133313231323113121
<<
B3311331313231311331322331333131133132313331313232233131333132313231131213
>>
B3311331313231311331322331333131133132313331313232233131333132313231131212
>>