import  java.util.*;


import static java.util.Arrays.*;

public class Main {
    public static void main(String[] args)
    {
        Scanner sc =new Scanner(System.in);
        int a,b;
        a=sc.nextInt();
        b=sc.nextInt();
        int ar[] = new int[a];
        int i, j = 0;
        for (i = 0; i < a; i++) {
            ar[i] = sc.nextInt();
        }
        if(b>=a){
            System.out.println("0");
        }
        else {

            sort(ar);
        
            long  sum = 0;
            for (i = 0; i <a-b; i++) {
                sum = sum + ar[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