B3311331313231311331322331333131133133313111333133313231323131133132332211
>>
B331133131323131133132233133313113313331311133313331323132313113313233221
<<
B3311331313231311331322331333131133133313111333133313231323131133132332213
>>
B3311331313231311331322331333131133133313111333133313231323131133132332212
>>