C313212111133131211331333133313331311331333133313113313331322113221   >>    C31321211113313121133133313331333131133133313331311331333132211322   <<    C313212111133131211331333133313331311331333133313113313331322113223   >>      C313212111133131211331333133313331311331333133313113313331322113222   >>