C313212111133131211331333133313331311331333133313221211111333132332231   >>    C31321211113313121133133313331333131133133313331322121111133313233223   <<    C313212111133131211331333133313331311331333133313221211111333132332233   >>      C313212111133131211331333133313331311331333133313221211111333132332232   >>