11977 → 1981+41658 → 1652-6
21899 → 1902+31526 → 1523-3
31902 → 1906+41652 → 1644-8
41523 → 1543+201981 → 1962-19
51962 → 1971+91906 → 1899-7
61543 → 1558+151644 → 1623-21
71899 → 1903+41623 → 1616-7
81558 → 1580+221971 → 1953-18
91580 → 1595+151616 → 1598-18
101953 → 1962+91903 → 1895-8
111962 → 1966+41598 → 1592-6
121895 → 1898+31595 → 1589-6