12415 → 241501500 → 15000
21663 → 1670+71500 → 1492-8
32415 → 2416+11492 → 14920
41500 → 1516+161670 → 1655-15
52416 → 241601655 → 1654-1
61516 → 1527+111492 → 1481-11
72416 → 241601481 → 1480-1
81527 → 1543+161654 → 1640-14
92416 → 2417+11543 → 1542-1
101640 → 1647+71480 → 1473-7
112417 → 241701647 → 1646-1
121542 → 1553+111473 → 1462-11