B331133131323131133132233133313113313132313113313331323223313231311331323132211
>>
B33113313132313113313223313331311331313231311331333132322331323131133132313221
<<
B331133131323131133132233133313113313132313113313331323223313231311331323132213
>>
B331133131323131133132233133313113313132313113313331323223313231311331323132212
>>