11962 → 1974+121855 → 1847-8
21840 → 1842+21373 → 1371-2
31842 → 1844+21490 → 1486-4
41486 → 1495+91371 → 1364-7
51974 → 1978+41495 → 1493-2
61978 → 1981+31493 → 1490-3
71847 → 1857+101844 → 1836-8
81836 → 1846+101857 → 1847-10
91846 → 1856+101847 → 1839-8
101856 → 1871+151981 → 1960-21
111960 → 1973+131871 → 1861-10
121861 → 1877+161973 → 1952-21