B3311331313231311331322331333132313231333131323223313231121133132313232211
>>
B331133131323131133132233133313231323133313132322331323112113313231323221
<<
B3311331313231311331322331333132313231333131323223313231121133132313232213
>>
B3311331313231311331322331333132313231333131323223313231121133132313232212
>>