mine

function mineForward(times)
   for i = 1, times do
      while not turtle.forward() do
         turtle.dig()
         turtle.attack()
      end
   end
end

function mineDown()
   while not turtle.down() do
      turtle.digDown()
      turtle.attackDown()
   end
end

function turn360()
   turtle.turnRight()
   turtle.turnRight()
end


term.write("Enter Y vector:")
local y = tonumber(read())

while y > 5 do
   mineDown()
   y = y - 1
   turtle.placeDown()
   mineForward(3)
   turn360()
   mineForward(2)
   turn360()
end