12300 → 2302+21683 → 1682-1
21861 → 1866+51640 → 1631-9
31880 → 1882+21353 → 1352-1
42302 → 2306+41866 → 1864-2
51882 → 1889+71631 → 1623-8
61682 → 1687+51352 → 1348-4
72306 → 2310+41889 → 1886-3
81864 → 1865+11348 → 1345-3
91623 → 1642+191687 → 1670-17