C11231323321111331312111133133313331323223313231333131311331323132311   >>    C1123132332111133131211113313331333132322331323133313131133132313231   <<    C11231323321111331312111133133313331323223313231333131311331323132313   >>      C11231323321111331312111133133313331323223313231333131311331323132312   >>