MIN_METRIC
if ($2 < MIN_METRIC || $2 > MAX_METRIC) {
MIN_METRIC, MAX_METRIC);
if ($2 < MIN_METRIC || $2 > MAX_METRIC) {
MIN_METRIC, MAX_METRIC);
if ($2 < MIN_METRIC || $2 > MAX_METRIC) {
MIN_METRIC, MAX_METRIC);