turtle.refuel()
local x, y, z = 1, 1, 1
local function gotoChest(newX, newY, newZ)
    local direction = nil
    if x < newX then direction = "right" turtle.turnRight() elseif x > newX then direction = "left" turtle.turnLeft() end
    while x < newX do
        turtle.forward()
        x = x + 1
        turtle.digDown()
    end
    while x > newX do
        turtle.forward()
        x = x - 1
        turtle.digDown()
    end
    if direction == "right" then turtle.turnLeft() elseif direction == "left" then turtle.turnRight() end
    while z < newZ do
        turtle.forward()
        z = z + 1
    end
    while z > newZ do
        turtle.back()
        z = z - 1
    end
    while y < newY do
        turtle.up()
        y = y + 1
    end
    while y > newY do
        turtle.down()
        y = y - 1
    end
end
-- for lookups:
local chests = {}
local function parkC(chest)
    local coords = chests[chest]
    gotoChest(coords[1], coords[2],coords[3])
end
for y = 1, 9 do
    for x = 1, 9 do
        for z = 1, 9 do
            table.insert(chests, {x, y, z})
        end
    end
end
for i=1,81*3 do
  parkC(i)
  turtle.digDown()
end