simple skript help

[matin]

hey, how would i deny someone from breaking or placing blocks in a certain location like is there any cords i can do? something like

on break
if players x y z = 25 64 246
cancel event
(this is probs nowhere near correct)

 

[Lego_freak1999]

On break:
   If location of event-block is location 0.5, 0.5, 0.5 in world world of player:
      Cancel event

On break:
   If x-coord of event-block is 0.5:
      If y-coord of eve...