B3311331313231311331322331333132313233313231333131133131133132312313221211
>>
B331133131323131133132233133313231323331323133313113313113313231231322121
<<
B3311331313231311331322331333132313233313231333131133131133132312313221213
>>
B3311331313231311331322331333132313233313231333131133131133132312313221212
>>