<?php
[$n,$m,$x,$y] = explode(" ",trim(fgets(STDIN)));
$a = trim(fgets(STDIN));
sort($a);
$l= $n -$m;
$ans = 0;

for ($i = 0; $i < $l; $i++) {
     if($a[$i] > $x){
         echo "Handicapped";
     }
}

for ($j = $l;$n > $j;$j++){
    if($a[$j] > $y){
        $ans += $a[$j];
    }
}

echo $ans;
?>