B3311331313231311331322331333132313231323331333131333133313231322132332211
>>
B331133131323131133132233133313231323132333133313133313331323132213233221
<<
B3311331313231311331322331333132313231323331333131333133313231322132332213
>>
B3311331313231311331322331333132313231323331333131333133313231322132332212
>>