B331133131323131133132233133313233313331323133211331333133313232213231211
>>
B33113313132313113313223313331323331333132313321133133313331323221323121
<<
B331133131323131133132233133313233313331323133211331333133313232213231213
>>
B331133131323131133132233133313233313331323133211331333133313232213231212
>>