import java.util.*;
import java.io.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int k = sc.nextInt();
    long count = 0;
    long[] H = new long[n];
    for (int i = 0; i < n; i++) {
      H[i] = sc.nextLong();
    }
    Arrays.sort(H);
    if (n <= k) {
      count = 0;
    } else {
      for (int i = n - 1 - k; i >= 0; i--) {
        count += H[i];
      }
    }
    System.out.println(count);
  }
}
/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