When doing the code in L9.P1(** Damaging The Robot**)
The answer and the output is completely correct but it seems not to be detected.Nothing happend when finish the practice.I tried to copy the official solution.But it seems to look exactly the same as mine. So I'm sure it a bug.BTW,it's a nice tutorial game.

When doing the code in L9.P1(** Damaging The Robot**)
The answer and the output is completely correct but it seems not to be detected.Nothing happend when finish the practice.I tried to copy the official solution.But it seems to look exactly the same as mine. So I'm sure it a bug.BTW,it's a nice tutorial game.