B331133131323131133132233133313233313331323133211331333133313232322123121
>>
B33113313132313113313223313331323331333132313321133133313331323232212312
<<
B331133131323131133132233133313233313331323133211331333133313232322123123
>>
B331133131323131133132233133313233313331323133211331333133313232322123122
>>