import java.util.*;
class Main{
  public static void main(String [] args){
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt();
    int K = sc.nextInt();
    long[] HP = new long[N];
    for(int i=0; i < N; i++){
      HP[i]= sc.nextLong();
    }
    Arrays.sort(HP);
    long total = 0;
    int lim = (N<K)? 0 : N-K;
    for(int i = 0; i < lim; i++){
        total += HP[i];
    }
    System.out.print(total);
    
  }
}
/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