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

public class Main{
public static void main(String[] args){
Scanner scan=new Scanner(System.in);

int n=scan.nextInt();
int k=scan.nextInt();
long[] h=new long[n];
 int i=0;
  for(i=0;i<n;i++){
    h[i]=scan.nextLong();
  }
Arrays.sort(h);
long sum=0;
for(i=0;i<n-k;i++){
  sum=sum+h[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