3

local height = 38
while height > 0 do
print (height)
turtle.dig()
print ("dug forwards")
turtle.turnRight()
print ("turned right")
turtle.dig()
print ("dug forwards")
turtle.turnLeft()
print ("turned left")
turtle.forward()
print ("moved forward")
turtle.turnRight()
print ("turned right")
turtle.turnLeft()
print ("turned left")
turtle.back()
print ("moved back")
turtle.digDown()
print ("dug down")
turtle.down()
print ("moved down")
height = height - 1
print (height)
end