B3311331313231311331322331333132313231323331333131133133313233313331322132121
>>
B331133131323131133132233133313231323132333133313113313331323331333132213212
<<
B3311331313231311331322331333132313231323331333131133133313233313331322132123
>>
B3311331313231311331322331333132313231323331333131133133313233313331322132122
>>