C13112133313331323321333133313331333131211113313331333133313311211111322311   >>    C1311213331333132332133313331333133313121111331333133313331331121111132231   <<    C13112133313331323321333133313331333131211113313331333133313311211111322313   >>      C13112133313331323321333133313331333131211113313331333133313311211111322312   >>