import java.util.*;
public class Main { 
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
        int k = Integer.parseInt(sc.next());
        if(k >= n) {
        	System.out.println(0);
          	return;
        }
        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 += arr[i];
        System.out.println(sum);
    }
} import java.util.*; util.* java public class Main { 
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
        int k = Integer.parseInt(sc.next());
        if(k >= n) {
        	System.out.println(0);
          	return;
        }
        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 += arr[i];
        System.out.println(sum);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
        int k = Integer.parseInt(sc.next());
        if(k >= n) {
        	System.out.println(0);
          	return;
        }
        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 += arr[i];
        System.out.println(sum);
    } main {
        Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
        int k = Integer.parseInt(sc.next());
        if(k >= n) {
        	System.out.println(0);
          	return;
        }
        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 += arr[i];
        System.out.println(sum);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = Integer.parseInt(sc.next()); n Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int k = Integer.parseInt(sc.next()); k Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc if(k >= n) {
        	System.out.println(0);
          	return;
        } k >= n k n {
        	System.out.println(0);
          	return;
        } System.out.println(0) System.out.println System.out System System.out 0 return; 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 += arr[i]; int i = 0; int i = 0; i 0 i < (n - k) i (n - k) n k i++ i++ i sum += arr[i]; sum += arr[i] sum arr[i] arr i System.out.println(sum) System.out.println System.out System System.out sum String[] args args public class Main { 
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
        int k = Integer.parseInt(sc.next());
        if(k >= n) {
        	System.out.println(0);
          	return;
        }
        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 += arr[i];
        System.out.println(sum);
    }
} public class Main { 
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
        int k = Integer.parseInt(sc.next());
        if(k >= n) {
        	System.out.println(0);
          	return;
        }
        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 += arr[i];
        System.out.println(sum);
    }
} Main
import java.util.*;
public class Main { 
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
        int k = Integer.parseInt(sc.next());
        if(k >= n) {
        	System.out.println(0);
          	return;
        }
        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 += arr[i];
        System.out.println(sum);
    }
}