B3311331313231311331322331333132313231323331333131333132313233313121121111
>>
B331133131323131133132233133313231323132333133313133313231323331312112111
<<
B3311331313231311331322331333132313231323331333131333132313233313121121113
>>
B3311331313231311331322331333132313231323331333131333132313233313121121112
>>