import java.util.*;
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];
    for(int i = 0; i < n; i++) {
      arr[i] = sc.nextInt();
    }
    Arrays.sort(arr);
    long sum = 0;
    for(int i = 0; i < n - k; i++) {
      sum = sum + arr[i];
    }
    System.out.println(sum);
  }
} import java.util.*; util.* java 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];
    for(int i = 0; i < n; i++) {
      arr[i] = sc.nextInt();
    }
    Arrays.sort(arr);
    long sum = 0;
    for(int i = 0; i < n - k; i++) {
      sum = sum + arr[i];
    }
    System.out.println(sum);
  }
} 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];
    for(int i = 0; i < n; i++) {
      arr[i] = sc.nextInt();
    }
    Arrays.sort(arr);
    long sum = 0;
    for(int i = 0; i < n - k; i++) {
      sum = sum + arr[i];
    }
    System.out.println(sum);
  } main {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int k = sc.nextInt();
    int[] arr = new int[n];
    for(int i = 0; i < n; i++) {
      arr[i] = sc.nextInt();
    }
    Arrays.sort(arr);
    long sum = 0;
    for(int i = 0; i < n - k; i++) {
      sum = sum + arr[i];
    }
    System.out.println(sum);
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int k = sc.nextInt(); k sc.nextInt() sc.nextInt sc int[] arr = new int[n]; arr new int[n] n for(int i = 0; i < n; i++) {
      arr[i] = sc.nextInt();
    } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
      arr[i] = sc.nextInt();
    } {
      arr[i] = sc.nextInt();
    } arr[i] = sc.nextInt() arr[i] arr i sc.nextInt() sc.nextInt sc Arrays.sort(arr) Arrays.sort Arrays arr long sum = 0; sum 0 for(int i = 0; i < n - k; i++) {
      sum = sum + arr[i];
    } int i = 0; int i = 0; i 0 i < n - k i n - k n k i++ i++ i {
      sum = sum + arr[i];
    } {
      sum = sum + arr[i];
    } sum = sum + arr[i] sum sum + arr[i] sum arr[i] arr i System.out.println(sum) System.out.println System.out System System.out sum String[] args args
import java.util.*;
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];
    for(int i = 0; i < n; i++) {
      arr[i] = sc.nextInt();
    }
    Arrays.sort(arr);
    long sum = 0;
    for(int i = 0; i < n - k; i++) {
      sum = sum + arr[i];
    }
    System.out.println(sum);
  }
}