mine4

function mining()
 for k=1,1 do
  turtle.digDown()
  turtle.down()
 end
end

function mining3(a)
 for k=1,a do
  mining()
  turtle.dig()
  turtle.forward()
  turtle.turnRight()
  turtle.dig()
  turtle.turnLeft()
  turtle.turnLeft()
  turtle.dig()
  turtle.turnRight()
  turtle.digUp()
 end
end

mining3()