C11231323321111331312111133133313331323132313331333132311331322113123311   >>    C1123132332111133131211113313331333132313231333133313231133132211312331   <<    C11231323321111331312111133133313331323132313331333132311331322113123313   >>      C11231323321111331312111133133313331323132313331333132311331322113123312   >>