C111112111133131121133133313331323133313221211111333133313331333132332313111   >>    C11111211113313112113313331333132313331322121111133313331333133313233231311   <<    C111112111133131121133133313331323133313221211111333133313331333132332313113   >>      C111112111133131121133133313331323133313221211111333133313331333132332313112   >>