import java.util.*;
public class Main {
	public static void main(String[] args){
      	
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int K = sc.nextInt();
		long arr[] = new long[N];
		for (int i = 0; i < arr.length; i++) {
			arr[i] = sc.nextLong();
		}
		Arrays.sort(arr);
		long atk = 0;
		for (int i = 0; i < arr.length-K; i++) {
			atk += arr[i];
		}
		System.out.println(atk);
      	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