
import java.util.Arrays;
import java.util.Scanner;

public 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 res = 0;
        if(n<=k){
            System.out.println(0);
        }else {
            Arrays.sort(h);
            for(int i = 0; i < n-k; i++){
                res+=h[i];
            }
            System.out.println(res);
        }
    }
}
/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