B3311331313231311331322331333132313231323331333131123313331323133313112233221
>>
B331133131323131133132233133313231323132333133313112331333132313331311223322
<<
B3311331313231311331322331333132313231323331333131123313331323133313112233223
>>
B3311331313231311331322331333132313231323331333131123313331323133313112233222
>>