import java.util.*;

public class Main{
    public static void main(String[] args){
        Scanner scan = new java.util.Scanner(System.in);
        long n = scan.nextLong();
        long k = scan.nextLong();
        long out = 0;
        long[] h =  new long[(int)n];
        for(int i = 0; i < n; i++){
            h[i] = scan.nextLong();
        }
        Arrays.sort(h);
        for(int i = 0 ; i < n - k; i++){
            out += h[i];
        }
        System.out.println(out);
    }
}
/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