B3311331313231311331322331333132333132332113313331323132313231211111
>>
B331133131323131133132233133313233313233211331333132313231323121111
<<
B3311331313231311331322331333132333132332113313331323132313231211113
>>
B3311331313231311331322331333132333132332113313331323132313231211112
>>