View difference between Paste ID: GKvJiPnv and ZWzFgp80

 function iff (x,y,z)
 if a[x][y][z]==1 then
 turtle.select(1)
 elseif a[x][y][z]==2 then
 turtle.select(2)
 elseif a[x][y][z]==3 then
 turtle.select(3)
 elseif a[x][y][z]==4 then
 turtle.select(4)
 elseif a[x][y][z]==5 then
 turtle.select(5)
 elseif a[x][y][z]==6 then
 turtle.select(6)
 elseif a[x][y][z]==0 then
 turtle.select(16)
 end
 end
 
 a = {
 	{
 		{1, 2, 2, 1},
   		{2, 0, 0, 2},
 		{2, 0, 0, 2},
 		{1, 2, 2, 1}
 	},
 	{
 		{2, 0, 0, 2},
   		{0, 0, 0, 0},
 		{0, 0, 0, 0},
 		{2, 0, 0, 2}
 	},
 	{
 		{2, 0, 0, 2},
   		{0, 0, 0, 0},
 		{0, 0, 0, 0},
 		{2, 0, 0, 2}
 	},
 	{
 		{1, 2, 2, 1},
   		{2, 0, 0, 2},
 		{2, 0, 0, 2},
 		{1, 2, 2, 1}
 	},
 }
 for i = 1,# do
 		for i =1,#[x] do
 			for i = 1,#[x][y] do
 				iff (x,y,z)
 				turtle.placeDown()
 				turtle.forward()
-turtle.up()
+
-for x=1,#a do
+
-	for y=1,#a[x] do
+
-		for z = 1,#a[x][y] do
+
-			iff(x,y)
+
-			turtle.placeDown()
+		for i = 1,#[x][y] do
 			turtle.forward()
 		end
 		turtle.turnRight()
 		turtle.forward()
 		turtle.turnRight()
-		for y = 1,11 do
+        for i = 1,#[x][y] do
 			turtle.forward()
 		end
 		turtle.turnRight()
         turtle.up()
-	end
+        end
-end
+