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);
    long ans =0;
    for(int i=0;i<k;i++){
      ans=ans+arr[i];
    }
    System.out.println(ans);
  }
} import java.util.*; util.* java 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);
    long ans =0;
    for(int i=0;i<k;i++){
      ans=ans+arr[i];
    }
    System.out.println(ans);
  }
} 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);
    long ans =0;
    for(int i=0;i<k;i++){
      ans=ans+arr[i];
    }
    System.out.println(ans);
  } main {
    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);
    long ans =0;
    for(int i=0;i<k;i++){
      ans=ans+arr[i];
    }
    System.out.println(ans);
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int k = sc.nextInt(); k sc.nextInt() sc.nextInt sc int[] arr = new int[n]; arr new int[n] n for(int i=0;i<n;i++){
      arr[i]=sc.nextInt();
    } int i=0; int i=0; i 0 i<n i n i++ i++ i {
      arr[i]=sc.nextInt();
    } {
      arr[i]=sc.nextInt();
    } arr[i]=sc.nextInt() arr[i] arr i sc.nextInt() sc.nextInt sc Arrays.sort(arr) Arrays.sort Arrays arr long ans =0; ans 0 for(int i=0;i<k;i++){
      ans=ans+arr[i];
    } int i=0; int i=0; i 0 i<k i k i++ i++ i {
      ans=ans+arr[i];
    } {
      ans=ans+arr[i];
    } ans=ans+arr[i] ans ans+arr[i] ans arr[i] arr i System.out.println(ans) System.out.println System.out System System.out ans String[] args args
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);
    long ans =0;
    for(int i=0;i<k;i++){
      ans=ans+arr[i];
    }
    System.out.println(ans);
  }
}
