This macro is designed for quick purchase of items on the trading floor in the first slot. Here's how it works:
1) You update the trading platform page until the cheap item appears.
2) Then the macro is activated and performs the purchase of the selected item in 35 milliseconds, providing you with a competitive advantage over other players.

It is important to note that I cannot guarantee that you will always buy items faster than other players, but this macro increases your chances of success.