JFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbrcat < 0), atomically updates @v to (@v - 1) with ${desc_order} ordering. * * ${desc_noinstr} * * Return: The old value of (@v - 1), regardless of whether @v was updated. */ EOF