B3311331313231311331322331333132311233132333131123313231333132313232233121
>>
B331133131323131133132233133313231123313233313112331323133313231323223312
<<
B3311331313231311331322331333132311233132333131123313231333132313232233123
>>
B3311331313231311331322331333132311233132333131123313231333132313232233122
>>