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