import java.util.*;
import java.util.ArrayList;
import java.util.Collection;

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

        int N = sc.nextInt();
        int K = sc.nextInt();
        int[] H = new int[N];
        int[] h = new int[N];
        long ans = 0;
        ArrayList<Integer> list = new ArrayList<Integer>();

        for(int i=0; i<N; i++){
            H[i] = sc.nextInt();
            list.add(H[i]);
        }
        Collections.sort(list);
        for(int i=0; i<N; i++){
            h[i] = list.get(i);
        }
        for(int i=0; i<N-K; i++){
            ans = ans + h[i];
        }
        System.out.println(ans);
    }
}
/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