import java.util.*;

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

		int n = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());
		int[] h = new int[n];
		long sum = 0;

		for (int i = 0; i < n; i++) {
			h[i] = Integer.parseInt(sc.next());
		}

		Arrays.sort(h);

		for (int i = 0; i < (Math.max(0,n - k)); i++) {
			sum += h[i];
		}
		System.out.println(sum);

		sc.close();
	}
}
/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