11891 → 1900+91820 → 1811-9
21526 → 1536+101502 → 1491-11
31536 → 1555+191900 → 1883-17
41491 → 1511+201883 → 1865-18
51555 → 1571+161811 → 1794-17
61571 → 1579+81511 → 1501-10
71865 → 1874+91794 → 1785-9
81874 → 1879+51579 → 1575-4
91785 → 1789+41501 → 1496-5
101879 → 1882+31496 → 1492-4
111789 → 1795+61575 → 1571-4
121795 → 1799+41492 → 1488-4