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();
		long[] H = new long[N];
		long ans = 0;
		for(int i = 0;i < N;i++){
			H[i] = sc.nextLong();
		}
		Arrays.sort(H);
		for(int i = 0;i < K;i++){
			H[N - 1 - i] = 0;
			if(N - 1 - i == 0){
				break;
			}
		}
		for(int i = 0;i < N;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