B3311331313231311331322331333132313231323331333131333133313233231312312231
>>
B331133131323131133132233133313231323132333133313133313331323323131231223
<<
B3311331313231311331322331333132313231323331333131333133313233231312312233
>>
B3311331313231311331322331333132313231323331333131333133313233231312312232
>>