C1123132332111133131211113313331333132313231333133313331333131333132212111   >>    C112313233211113313121111331333133313231323133313331333133313133313221211   <<    C1123132332111133131211113313331333132313231333133313331333131333132212113   >>      C1123132332111133131211113313331333132313231333133313331333131333132212112   >>