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();
		long[] nums = new long[n];
		
		for (int i = 0; i < n; i++) {
			nums[i] = scan.nextInt();
		}
		
		Arrays.sort(nums);
		long sum = 0;
		for (int i = 0; i < nums.length - k; i++) {
			sum+= nums[i];
		}
		
		System.out.println(sum);

	}
}
/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