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();

        int[] h = new int[n];
        for(int i = 0 ; i < n ; i++){
        	h[i] = sc.nextInt();
        }
        Arrays.sort(h);

        long ans = 0;

        for(int i = n-1-k ; i >= 0 ; i--){
        	ans += h[i];
        }

        System.out.println(ans);
    }
}
/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