Making command blocks loop

//adds the UpdateLastExecution:0b and TrackOutput nbt tag to commandblocks to make a loop happen, by tintin10 aka makkie_master aka Quinten Cabo has to be run in cmd combiner pro

//Paste this in to https://mrgarretto.com/cmdcombinerpro/ and hit the generate button

//area
$x = 5
$y = 2
$z = 5

/kill @e[tag=lag_prevention]
/kill @e[tag=update_ex]
/setblock ~19 ~-3 ~ minecraft:chain_command_block facing=south replace
/fill ~19 ~-3 ~1 ~4 ~-3 ~1 minecraft:chain_command_block facing=west replace
/setblock ~3 ~-3 ~1 minecraft:chain_command_block facing=north replace
/scoreboard players tag @a[r=20] add givetrigger
/scoreboard players tag @a[r=20,tag=givetrigger] remove givetrigger {Inventory:[{tag:{display:{Lore:["sq"]}}}]}
/give @a[tag=givetrigger] minecraft:armor_stand 1 0 {Invisible:1,display:{Lore:["Made by tintin10 aka makkie_master aka Quinten Cabo","sq"],Name:"Place me down to update a $x by $y by $z square"},EntityTag:{Tags:["update_ex"]}}
/scoreboard players tag @a[tag=givetrigger] remove givetrigger
//lag prevention patch
/summon area_effect_cloud ~2 ~-3 ~ {Tags:["lag_prevention"],Particle:mobSpell,Duration:100000000}
/setblock ~2 ~-3 ~1 minecraft:repeating_command_block facing=up replace {TrackOutput:0b,auto:1b,Command:/blockdata ~ ~ ~-1 {auto:0b}}
/setblock ~2 ~-2 ~1 minecraft:chain_command_block facing=up replace {TrackOutput:0b,auto:1b,Command:/execute @e[tag=update_ex] ~ ~ ~ /execute @e[tag=lag_prevention] ~ ~ ~ /blockdata ~ ~ ~ {auto:1b}}
/setblock ~2 ~-1 ~1 minecraft:chain_command_block facing=up replace {TrackOutput:0b,auto:1b,Command:/blockdata ~ ~ ~ {UpdateLastExecution:1b}}

/scoreboard objectives add x dummy
/scoreboard objectives add y dummy
/scoreboard objectives add z dummy

repeat main{
/blockdata ~ ~ ~ {TrackOutput:0b}
/scoreboard players add @e[tag=update_ex] x 0
/scoreboard players add @e[tag=update_ex] y 0
/scoreboard players add @e[tag=update_ex] z 0
/execute @e[tag=update_ex] ~ ~ ~ /blockdata ~ ~ ~ {UpdateLastExecution:0b,TrackOutput:0b}
/execute @e[tag=update_ex] ~ ~ ~ /particle angryVillager ~ ~ ~ 1 1 1 1
/tp @e[tag=update_ex,score_x=$x] ~1 ~ ~
/scoreboard players add @e[tag=update_ex] x 1
/tp @e[tag=update_ex,score_x_min=$x] ~-$x ~ ~1
/scoreboard players add @e[tag=update_ex,score_x_min=$x] z 1
/scoreboard players set @e[tag=update_ex,score_x_min=$x] x 0
/tp @e[tag=update_ex,score_z_min=$z] ~ ~1 ~-$z
/scoreboard players add @e[tag=update_ex,score_z_min=$z] y 1
/scoreboard players set @e[tag=update_ex,score_z_min=$z] z 0
/execute @e[tag=update_ex,score_y_min=$y] ~ ~ ~ /tellraw @a ["",{"text":"$x by $y by $z box updated!","color":"dark_green"}]
/execute @e[tag=update_ex,score_y_min=$y] ~ ~ ~ /playsound minecraft:block.anvil.use master @a ~ ~ ~ 1000000 2
/kill @e[tag=update_ex,score_y_min=$y]
}


/summon falling_block ~ ~10 ~ {Block:command_block,Data:1,Time:1,DropItem:0}