B3311331313231311331322331333131133133313231133133313331323133313231123131
>>
B331133131323131133132233133313113313331323113313331333132313331323112313
<<
B3311331313231311331322331333131133133313231133133313331323133313231123133
>>
B3311331313231311331322331333131133133313231133133313331323133313231123132
>>