import java.util.Collections;
import java.io.*;
import java.util.*;
import java.util.Arrays;

class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int k = sc.nextInt();
    int arr[] = new int[n];
    long sum = 0;
    for(int i=0;i<n;i++)
      arr[i] = sc.nextInt();
    for(int i=0;i<n;i++)
      arr[i] = -arr[i];
    Arrays.sort(arr);
    for(int i=0;i<n;i++)
      arr[i] = -arr[i];
    for(int i=k;i<n;i++){
      sum += arr[i];
    }
    System.out.println(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