C313212111133131211331333133313331311331333133313221211331322112121
>>
C31321211113313121133133313331333131133133313331322121133132211212
<<
C313212111133131211331333133313331311331333133313221211331322112123
>>
C313212111133131211331333133313331311331333133313221211331322112122
>>