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

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int monsterCount = sc.nextInt();
		int hissatuCount = sc.nextInt();
		long tairyokuList[] = new  long[monsterCount];
		long kougekiCount = 0;
		for(int i= 0; i<monsterCount;  i++) {
			tairyokuList[i] = sc.nextInt();
		}
		Arrays.sort(tairyokuList);
		if(monsterCount< hissatuCount) {
			hissatuCount = monsterCount;
		}
		for(int i=0; i<hissatuCount; i++) {
			tairyokuList[tairyokuList.length-1-i] = 0;
		}
		for(int i= 0; i<monsterCount;  i++) {
			kougekiCount = kougekiCount + tairyokuList[i];
		}
		System.out.println(kougekiCount);
	}
}
/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