C131121333133313233213331333133313331333133313331333133313121111121123221   >>    C13112133313331323321333133313331333133313331333133313331312111112112322   <<    C131121333133313233213331333133313331333133313331333133313121111121123223   >>      C131121333133313233213331333133313331333133313331333133313121111121123222   >>