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];
        
        if(n<=k){
            System.out.println(0);
            return;
        }
        
        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