B3311331313231311331322331333132313231323331333131333133313232213232322221
>>
B331133131323131133132233133313231323132333133313133313331323221323232222
<<
B3311331313231311331322331333132313231323331333131333133313232213232322223
>>
B3311331313231311331322331333132313231323331333131333133313232213232322222
>>