mining

iforward = 10
isides = 10
idown = 5
iinitial = 1

while iinitial > 0 do
turtle.forward()
turtle.digDown()
turtle.down()
iinitial = iinitial - 1
end

while idown > 0 do
 while isides > 0 do
   while iforward > 0 do
    turtle.dig()
    turtle.forward()
    iforward = iforward - 1
      end
    turtle.turnLeft()
    turtle.dig()
    turtle.forward()
    turtle.turnLeft()
    isides = isides - 1
    iforward = iforward + 10
   end
idown = 0
end