import java.util.*;

public class Main{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    int n = scan.nextInt();
    long sum = 0;
    int k = scan.nextInt();

    if (n<=k){
      System.out.println(0);
      return;
    }

    int [] a = new int[n];
    for (int i=0;i<n;i++){
      a[i] = scan.nextInt();
    }

    Arrays.sort(a);
    int p = n-k;
    for (int t = 0; t<p;t++){
      sum += a[t];
    }
    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