import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

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

        int n = stdIn.nextInt();
        int k = stdIn.nextInt();
        ArrayList<Long> hitPoint = new ArrayList<>();

        for (int i = 0; i < n; i++) {
            hitPoint.add(stdIn.nextLong());
        }

        Collections.sort(hitPoint);

        long attack = 0;
        for (int i = 0; i < n - k; i++) {
            attack += hitPoint.get(i);
        }

        System.out.println(attack);
    }
}

/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