What's the fastest way to Huarong Road?

Move 15 out slowly, move the last line to the right, then move it down by 9, move it up, and move it to the right a little bit. The third line must be moved, but the first two lines do not.

Turn the numbers in the last row upside down, and don't scatter them. When you turn up the numbers in the last line, find the correct order and insert them until the last line is in the right order, and then restore them.

It is impossible to solve such a situation that only two figures are incorrect. Mathematics has proved that there is no solution to this situation. That is to say, if the order of 1 1 and 12 is correct, then there must be two other numbers in the wrong order.

Extended data:

The concrete solution of Huarong Road:

1. After decades of efforts by Chinese and foreign scientists Jiang, Fujimura Saburo, and Martin Gardana, the game solution has been reduced from 87 steps more than 60 years ago to 8 1 step.

2. Thomas B.Lenann, an American lawyer, found a new solution, which was published by Gardner in the March issue of Scientific American 1964. There is 8 1 step, which is called Gardner solution.

3. The fastest way to take Huarong Road is 100 in China and 82 in Japan. Later, Americans used computers to find the final solution by exhaustive method, and there could be no faster solution, 8 1 step. After Americans found the final solution by computer, they joked with China that a famous American doctor named computer found the final solution.