B3311331313231311331322331333132313231323331333131323133313233313113313121111
>>
B331133131323131133132233133313231323132333133313132313331323331311331312111
<<
B3311331313231311331322331333132313231323331333131323133313233313113313121113
>>
B3311331313231311331322331333132313231323331333131323133313233313113313121112
>>