C31232233133313221211113313331333133313331212111111213331323222311211   >>    C3123223313331322121111331333133313331333121211111121333132322231121   <<    C31232233133313221211113313331333133313331212111111213331323222311213   >>      C31232233133313221211113313331333133313331212111111213331323222311212   >>