import java.util.*;
import java.util.Arrays;
import java.util.Collections;
public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
	int n = sc.nextInt();
    int k = sc.nextInt();
    LinkedList<Integer> h = new LinkedList<Integer>();
    for(int i = 0; i < n; i++){
      h.add(sc.nextInt());
    }
    Collections.sort(h,  Collections.reverseOrder());
    //char[] a = sc.nextLine().toCharArray();
    for(int i = 0; i < k; i++){
      h.poll();
    }
    double sum = 0;
    for(int i = 0; i < n-k; i++){
      sum += h.poll();
    }
    System.out.println(String.format("%.0f", sum));
  }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz