
import java.util.Arrays;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		long k = sc.nextLong();
		long[] a = new long[n];
		for (int i = 0; i < a.length; i++) {
			a[i] = sc.nextInt();
		}
		
		
		if (k >= n) {
			System.out.println(0);
		} else {
			Arrays.sort(a);
			long ans = 0;
			for (int i = 0; i < n - k; i++) {
				ans += a[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