C11231323321111331312111133133313331323132313331333121133133313221322321   >>    C1123132332111133131211113313331333132313231333133312113313331322132232   <<    C11231323321111331312111133133313331323132313331333121133133313221322323   >>      C11231323321111331312111133133313331323132313331333121133133313221322322   >>