I have this code ```ansi
[35mtag [36m@a [34madd [0mcountdown
[35msay [0mThe chest has been placed!
[37m$[35mexecute [34mpositioned [32m0 0 0 [34mrun [35msummon [0marmor_stand [34m$[33m([0mvarX[33m) [34m$[33m([0mvarY[33m) [34m$[33m([0mvarZ[33m) {[37mInvisible[34m:[32m1b[34m,[37mMarker[34m:[32m1b[34m,[37mTags[34m:[35m[[32m"chest"[35m][33m}
[37m$[35msetblock [34m$[33m([0mvarX[33m) [34m$[33m([0mvarY[33m) [34m$[33m([0mvarZ[33m) [0mchest
[35mfunction [33mhelpful:countdown {[37mlength[34m:[32m420[33m}
[35msay [0mYour [35mtime [0mstarts now [33m>:)
And I want place a chest in a random spot with i have the variables for but how do i load the spot so i can use it?