C1311213331333132332133313331333133313331333132313331311312223231   >>    C131121333133313233213331333133313331333133313231333131131222323   <<    C1311213331333132332133313331333133313331333132313331311312223233   >>      C1311213331333132332133313331333133313331333132313331311312223232   >>