C13112133313331323321333133313331333133313331311331333132313331333133323221   >>    C1311213331333132332133313331333133313331333131133133313231333133313332322   <<    C13112133313331323321333133313331333133313331311331333132313331333133323223   >>      C13112133313331323321333133313331333133313331311331333132313331333133323222   >>