C11231323321111331312111133133313331323223313231333131133132313331323123131   >>    C1123132332111133131211113313331333132322331323133313113313231333132312313   <<    C11231323321111331312111133133313331323223313231333131133132313331323123133   >>      C11231323321111331312111133133313331323223313231333131133132313331323123132   >>