import java.util.Arrays;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n= sc.nextInt(),k=sc.nextInt();
		long[] a=new long[n];
		long sum=0,count=0;
		for(int i=0;i<n;i++) {
			a[i]=sc.nextLong();
		}
		Arrays.parallelSort(a);
		for(int i=0;i<n-k;i++) {
			sum+=a[i];
		}
		//System.out.println(sum);

		System.out.println(sum);

	}

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

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n= sc.nextInt(),k=sc.nextInt();
		long[] a=new long[n];
		long sum=0,count=0;
		for(int i=0;i<n;i++) {
			a[i]=sc.nextLong();
		}
		Arrays.parallelSort(a);
		for(int i=0;i<n-k;i++) {
			sum+=a[i];
		}
		//System.out.println(sum);

		System.out.println(sum);

	}

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

		System.out.println(sum);

	} main {
		Scanner sc = new Scanner(System.in);
		int n= sc.nextInt(),k=sc.nextInt();
		long[] a=new long[n];
		long sum=0,count=0;
		for(int i=0;i<n;i++) {
			a[i]=sc.nextLong();
		}
		Arrays.parallelSort(a);
		for(int i=0;i<n-k;i++) {
			sum+=a[i];
		}
		//System.out.println(sum);

		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 k=sc.nextInt(); k sc.nextInt() sc.nextInt sc long[] a=new long[n]; a new long[n] n long sum=0 sum 0 count=0; count 0 for(int i=0;i<n;i++) {
			a[i]=sc.nextLong();
		} int i=0; int i=0; i 0 i<n i n i++ i++ i {
			a[i]=sc.nextLong();
		} {
			a[i]=sc.nextLong();
		} a[i]=sc.nextLong() a[i] a i sc.nextLong() sc.nextLong sc Arrays.parallelSort(a) Arrays.parallelSort Arrays a for(int i=0;i<n-k;i++) {
			sum+=a[i];
		} int i=0; int i=0; i 0 i<n-k i n-k n k i++ i++ i {
			sum+=a[i];
		} {
			sum+=a[i];
		} sum+=a[i] sum a[i] a 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= sc.nextInt(),k=sc.nextInt();
		long[] a=new long[n];
		long sum=0,count=0;
		for(int i=0;i<n;i++) {
			a[i]=sc.nextLong();
		}
		Arrays.parallelSort(a);
		for(int i=0;i<n-k;i++) {
			sum+=a[i];
		}
		//System.out.println(sum);

		System.out.println(sum);

	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n= sc.nextInt(),k=sc.nextInt();
		long[] a=new long[n];
		long sum=0,count=0;
		for(int i=0;i<n;i++) {
			a[i]=sc.nextLong();
		}
		Arrays.parallelSort(a);
		for(int i=0;i<n-k;i++) {
			sum+=a[i];
		}
		//System.out.println(sum);

		System.out.println(sum);

	}

} Main
import java.util.Arrays;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n= sc.nextInt(),k=sc.nextInt();
		long[] a=new long[n];
		long sum=0,count=0;
		for(int i=0;i<n;i++) {
			a[i]=sc.nextLong();
		}
		Arrays.parallelSort(a);
		for(int i=0;i<n-k;i++) {
			sum+=a[i];
		}
		//System.out.println(sum);

		System.out.println(sum);

	}

}
