turtle.refuel()
turtle.digDown()
turtle.select(5)
turtle.placeDown()
print("Dropping anchor")
turtle.forward()
turtle.digDown()
turtle.down()
turtle.digDown()
local n = 0
local m = 0
local rows = 0
local layers = 0
local reAnchor = false
while true do
    while turtle.getFuelLevel() > 10 do
    print("Digging")
        while turtle.getItemSpace(14) > 63 do
            while layers < 23 do
                while rows < 16 do
                    if rows == 0 then
                        if layers == 0 then
                            n = 1
                        end
                    end
                    while n < 16 do
                        turtle.dig()
                        turtle.forward()
                        turtle.digUp()
                        turtle.digDown()
                        n = n+1
                    end
                    rows = rows + 1
                    if m == 0 then
                        print("Turning right")
                        turtle.turnRight()
                        turtle.dig()
                        turtle.forward()
                        if reAnchor == false then
                            print("Re-Anchoring")
                            turtle.turnRight()
                            turtle.turnRight()
                            turtle.select(4)
                            turtle.place()
                            reAnchor = true
                            turtle.turnRight()
                            turtle.turnRight()
                        end
                        turtle.digDown()
                        turtle.digUp()
                        turtle.turnRight()
                        m = m + 1
                        n = 0
                    else
                        print("Turning left")
                        turtle.turnLeft()
                        turtle.dig()
                        turtle.forward()
                        turtle.digDown()
                        turtle.digUp()
                        turtle.turnLeft()
                        m = m - 1
                        n = 0
                    end
                end
                if layers%2 == 0 then
                    m = 1
                else
                    m = 0
                end
                turtle.turnRight()
                turtle.turnRight()
                turtle.down()
                turtle.digDown()
                turtle.down()
                turtle.digDown()
                turtle.down()
                turtle.digDown()
                layers = layers + 1
            end
            layers = 0
            turtle.turnRight()
            for j=1,15 do
                turtle.forward()
            end
            for k=1,65 do
                turtle.up()
            end
            turtle.turnRight()
            turtle.select(3)
            turtle.place()
            for i=4,14 do
            turtle.select(i)
            turtle.drop()
            while turtle.drop() == false do
                sleep (300)
                turtle.drop()
            end
            turtle.dig()
            turtle.digUp()
            reAnchor = false
            for j=1,15 do
                turtle.forward()
            end
        end
        turtle.dig()
        turtle.select(3)
        turtle.place()
        for i=5,14 do
            turtle.select(i)
            turtle.drop()
            while turtle.drop() == false do
                sleep (300)
                turtle.drop()
            end
        end
        turtle.dig()
    end
    print("Refueling")
    turtle.dig()
    turtle.select(1)
    turtle.place()
    turtle.select(2)
    for i=1,10 do
        turtle.place()
        turtle.refuel()
    end
    turtle.dig()
end
end