C11231323321111331312111133133313331323132313331333132332233231   >>    C1123132332111133131211113313331333132313231333133313233223323   <<    C11231323321111331312111133133313331323132313331333132332233233   >>      C11231323321111331312111133133313331323132313331333132332233232   >>