C11231323321111331312111133133313331323223313231333131323131121   >>    C1123132332111133131211113313331333132322331323133313132313112   <<    C11231323321111331312111133133313331323223313231333131323131123   >>      C11231323321111331312111133133313331323223313231333131323131122   >>