import java.util.*;
 
public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    try {
      int n = sc.nextInt();
      int k = sc.nextInt();
      long[] h = new long[n];
      for (int i = 0; i < n; i++) h[i] = sc.nextLong();

      Arrays.sort(h);
      long ans = 0;
      for (int i = 0; i < n - k; i++) ans += h[i];
      System.out.println(ans);
    } finally {
      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