B3311331313231311331322331333132313331323133313233313331311331333132311222221
>>
B331133131323131133132233133313231333132313331323331333131133133313231122222
<<
B3311331313231311331322331333132313331323133313233313331311331333132311222223
>>
B3311331313231311331322331333132313331323133313233313331311331333132311222222
>>