
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;

public class Main {

	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		
		String[] tmpArray = br.readLine().split(" ");
		
		int n = Integer.parseInt(tmpArray[0]);
		int k = Integer.parseInt(tmpArray[1]);
		
		int c[] = new int[n];
		tmpArray = br.readLine().split(" ");
		
		long sum = 0;
		for(int i = 0; i < n ; i++) {
			c[i] = Integer.parseInt(tmpArray[i]);
		}
		
		Arrays.sort(c);
		
		for(int i = 0; i < n - k; i++) {
			sum += c[i];
		}
		
		System.out.println(sum);
	}

}

/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