import java.math.BigInteger;
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();
			Integer[] h = new Integer[n];
			long sum = 0;
			
			
			for(int i=0;i<n;i++) {
				h[i]=sc.nextInt();
			}
			
			Arrays.sort(h,Collections.reverseOrder());
			
			if(n<=k) {
				System.out.println(0);
				return;
			}else {
				for(int i=k;i<n;i++) {
					sum += h[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