Mine

local args = { ... }
local dist = tonumber(args[1])
for i=1,dist,1 do

turtle.dig()
turtle.forward()
turtle.turnLeft()
turtle.dig()
turtle.turnRight()
turtle.turnRight()
turtle.dig()
turtle.turnLeft()
turtle.digUp()
turtle.up()
turtle.turnLeft()
turtle.dig()
turtle.turnRight()
turtle.turnRight()
turtle.dig()
turtle.turnLeft()
turtle.down()
end