import java.util.*; 
class Main 
{
public static void main(String args[]) 
{
Scanner sc = new Scanner(System.in); 
int n = sc.nextInt(); 
int k = sc.nextInt(); 
int arr[] = new int[n]; 
  
for(int i=0;i<n;i++) 
{
arr[i]=sc.nextInt();
} 
Arrays.sort(arr); 
int sum=0; 
for(int i=0;i<k;i++) 
{
   sum=sum+arr[i];
} 
System.out.print(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