import java.util.Arrays;
import java.util.Scanner;

public class Main{
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
		int n = scan.nextInt();
		int k = scan.nextInt();

		int[] h = new int[n];

		int i;
		for(i = 0; i < n; i++) {
			h[i] = scan.nextInt();
		}

		Arrays.sort(h);

		if(k >= n) {
			System.out.println(0);
			return;
		}else {
			long sum = 0;
			for(i = 0; i < n - k; i++) {
				sum += h[i];
			}
			System.out.println(sum);
			return;
		}

	}
}
/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