B3311331313231311331322331333132313231323132313133313231323133313113321131
>>
B331133131323131133132233133313231323132313231313331323132313331311332113
<<
B3311331313231311331322331333132313231323132313133313231323133313113321133
>>
B3311331313231311331322331333132313231323132313133313231323133313113321132
>>