import java.lang.reflect.Array;
import java.util.Arrays;
import java.util.Scanner;

public class Main {

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

    }
} import java.lang.reflect.Array; Array java.lang.reflect import java.util.Arrays; Arrays java.util import java.util.Scanner; Scanner java.util public class Main {

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

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

    } main {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int k = in.nextInt();
        int[] a = new int[n];
        for (int i = 0; i < n; i++) a[i] = in.nextInt();
        Arrays.sort(a);
        long ans = 0;
        for (int i = 0; i < n - k; i++) ans += a[i];
        System.out.println(ans);

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

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

    }
} public class Main {

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

    }
} Main
import java.lang.reflect.Array;
import java.util.Arrays;
import java.util.Scanner;

public class Main {

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

    }
}
