View difference between Paste ID: tw833KSh and dcJ3Q7hi

 local function up(x)
   repeat
     x=x-1
     while not turtle.up() do
       print("Failed to move UP")
       sleep(0.2)
     end
   until x==0
 end
 
 local function down(x)
   repeat
     x=x-1
     while not turtle.down() do
       print("Failed to move DOWN")
       sleep(0.2)
     end
   until x==0
 end
 
 local function forward(x)
   repeat
     x=x-1
     while not turtle.forward() do
       print("Failed to move FORWARD")
       sleep(0.2)
     end
   until x==0
 end
 
 local function back(x)
   repeat
     x=x-1
     while not turtle.back() do
       print("Failed to move BACK")
       sleep(0.2)
     end
   until x==0
 end
 
 local function left(x)
   repeat
     x=x-1
     turtle.turnLeft()
   until x==0
 end
 
 local function right(x)
   repeat
     x=x-1
     turtle.turnRight()
   until x==0
 end
 
 local function fuel()
   if turtle.getFuelLevel() < 1000 then do
     turtle.select(1)
     turtle.refuel(10)
     end
   end
 end
 
 local function fell()
   forward(10)
   right(1)
   turtle.select(2)
   while not turtle.compare() do
     print("Tree not grown yet")
     sleep(5.0)
   end
   turtle.dig()
   forward(1)
   while turtle.compare() do
     turtle.dig()
     turtle.digUp()
     up(1)
   end
   fuel()
   left(1)
   turtle.dig()
   forward(1)
   right(1)
   while turtle.compareDown() do
     turtle.digDown()
     down(1)
     turtle.dig()
   end
   fuel()
 end
 
 local function plant()
   up(1)
   turtle.select(3)
   x=2
   repeat
     x=x-1
     turtle.placeDown()
     forward(1)
     right(1)
   until x==0
   turtle.placeDown()
   forward(1)
   turtle.placeDown()
   forward(1)
   down(1)
   left(1)
   forward(10)
   left(1)
-  turtle.suck(4)
+  j = turtle.getItemCount()
   turtle.suck(5-j)
   left(1)
   fuel()
 end
 
 local function drop()
   for i=4,16 do
     turtle.select(i)
     p = turtle.getItemCount(i)
     turtle.dropDown(p-1)
   end
 end
 
 local function suck()
   turtle.select(1)
   turtle.suckDown()
 end
 
 local function supply()
   left(1)
   up(4)
   forward(24)
   left(1)
   forward(12)
   down(1)
   drop()
-  forward(6)
+
   suck()
   left(2)
   up(1)
   forward(13)
-  forward(15)
+
   forward(24)
   down(4)
   left(1)
-  forward(3)
+
-  down(3)
+
 
 local function program()
   y=1
   repeat
     fell()
     plant()
     supply()
   until y==2
 end
 
 
 function stopLoop()
     repeat
       local ev, key = os.pullEvent('key')
     until key == keys.backspace
     y=2
 end
 
 parallel.waitForAll(stopLoop, program)