Request for Help to Adapt a Code For Give Items to Players

[Kizame]

I have a code that gives 1 green shell to Player 1 when a button is pressed :

283457E2 00000200 
48000000 809C1900 
DE000000 80008180 
58010000 00000008 
DE000000 80008180 
48100000 80001500 
DE000000 80008180 
1000008F 00000000 
10000093 00000001 
E0000000 80008000 

I would like to adapt this code so that when a button is pressed by Player 2 or Player 3, it gives a green shell to the corresponding player:

• Player 2's button pressed = green shell for Player 2.
  
• Player 3's button pressed = green shell for Player 3.
  

If someone has a solution, I would also appreciate an explanation of how it works so I can replicate it for other items. Thanks in advance for your help!