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 answer =0;
    long H[] = new long[N];
    for(int i=0;i<N;i++){
      H[i]=sc.nextLong();
    }
    if(N<=K){
      System.out.println(0);
      return;
    }
    Arrays.sort(H);
    for(int i=0;i<N-K;i++){
      answer = answer+H[i];
    }
    System.out.println(answer);
  }
}
/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