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();
        
        List<Integer> p = new ArrayList<>();
      
      	for(int i = 0; i < n; i++){
        	p.add(sc.nextInt());
        }
      
      	Collections.sort(p);
      
      	int result = 0;
      
      	for(int i=0; i < k; i++){
        	result += p.get(i);
        }
      
      	System.out.print(result);
    }
}

/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