11721 → 1733+121686 → 1679-7
21679 → 1688+91733 → 1718-15
31688 → 1697+91718 → 1705-13
42013 → 2017+41700 → 1696-4
51696 → 1717+212017 → 1997-20
61997 → 2002+51717 → 1711-6
71711 → 1724+131705 → 1694-11
81724 → 1736+121694 → 1684-10
92002 → 2007+51697 → 1694-3
102007 → 2012+51694 → 1691-3