B331133131323131133132233133313233313331323133211331333133313232211211112121
>>
B33113313132313113313223313331323331333132313321133133313331323221121111212
<<
B331133131323131133132233133313233313331323133211331333133313232211211112123
>>
B331133131323131133132233133313233313331323133211331333133313232211211112122
>>