B3311331313231311331322331333132333132313132333112331323132313231333132312121
>>
B331133131323131133132233133313233313231313233311233132313231323133313231212
<<
B3311331313231311331322331333132333132313132333112331323132313231333132312123
>>
B3311331313231311331322331333132333132313132333112331323132313231333132312122
>>