{
  "hints": [
    "All start with 6. Look at the thousands digit to separate into groups.",
    "The two numbers with thousands digit 2 (62398, 62893) are smaller and come first.",
    "Within the 2-group: 62398 < 62893 (3 < 8). Within the 8-group: 68329 < 68923 (3 < 9)."
  ]
}