import java.util.*;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Collections;

public class Main {
	public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        //ArrayList<Integer> list;
        List<Integer> list = new ArrayList<>();
        
        int number = sc.nextInt();
        int k = sc.nextInt(); 
        for(int i = 0; i < number ; i++){
            list.add(sc.nextInt());
        }

        Collections.sort(list);
        int min = number - k;
        long count = 0;
        if( min <= 0 ){
            System.out.println(count);
        }else{
            for(int i = 0; i<min; i++){
                count += list.get(i);
            }
            System.out.println(count);
        }
    
	}
}
/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