C11231323321111331312111133133313331323223313231333131133132313331313111   >>    C1123132332111133131211113313331333132322331323133313113313231333131311   <<    C11231323321111331312111133133313331323223313231333131133132313331313113   >>      C11231323321111331312111133133313331323223313231333131133132313331313112   >>