B3311331313231311331322331333132233131133132233133313231333132333132322132211
>>
B331133131323131133132233133313223313113313223313331323133313233313232213221
<<
B3311331313231311331322331333132233131133132233133313231333132333132322132213
>>
B3311331313231311331322331333132233131133132233133313231333132333132322132212
>>