C13112133313331323321333133313331333133313331311331323222313113211   >>    C1311213331333132332133313331333133313331333131133132322231311321   <<    C13112133313331323321333133313331333133313331311331323222313113213   >>      C13112133313331323321333133313331333133313331311331323222313113212   >>