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