B3311331313231311331322331333132313233313231333131133132313113313331322132211
>>
B331133131323131133132233133313231323331323133313113313231311331333132213221
<<
B3311331313231311331322331333132313233313231333131133132313113313331322132213
>>
B3311331313231311331322331333132313233313231333131133132313113313331322132212
>>