C11112331333132311331333132313331333131133131133132332313221211   >>    C1111233133313231133133313231333133313113313113313233231322121   <<    C11112331333132311331333132313331333131133131133132332313221213   >>      C11112331333132311331333132313331333131133131133132332313221212   >>