import java.math.BigInteger;
import java.util.*;
public class Main {
	static Map<Long,ArrayList<String>> l=new TreeMap<Long,ArrayList<String>>();
	static long p[];
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		int k=sc.nextInt();
		int a[]=new int [n];
		for(int i=0;i<n;i++) {
			a[i]=sc.nextInt();
		}
		Arrays.sort(a);
		int sum=0;
		for(int i=0;i<k;i++) {
			sum+=a[i];
		}
		System.out.println(sum);
	}
	
	
}

  import java.math.BigInteger; BigInteger java.math import java.util.*; util.* java public class Main {
	static Map<Long,ArrayList<String>> l=new TreeMap<Long,ArrayList<String>>();
	static long p[];
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		int k=sc.nextInt();
		int a[]=new int [n];
		for(int i=0;i<n;i++) {
			a[i]=sc.nextInt();
		}
		Arrays.sort(a);
		int sum=0;
		for(int i=0;i<k;i++) {
			sum+=a[i];
		}
		System.out.println(sum);
	}
	
	
} Main static Map<Long,ArrayList<String>> l=new TreeMap<Long,ArrayList<String>>(); l new TreeMap<Long,ArrayList<String>>() static long p[]; p public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		int k=sc.nextInt();
		int a[]=new int [n];
		for(int i=0;i<n;i++) {
			a[i]=sc.nextInt();
		}
		Arrays.sort(a);
		int sum=0;
		for(int i=0;i<k;i++) {
			sum+=a[i];
		}
		System.out.println(sum);
	} main {
		// TODO Auto-generated method stub
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		int k=sc.nextInt();
		int a[]=new int [n];
		for(int i=0;i<n;i++) {
			a[i]=sc.nextInt();
		}
		Arrays.sort(a);
		int sum=0;
		for(int i=0;i<k;i++) {
			sum+=a[i];
		}
		System.out.println(sum);
	} 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 a[]=new int [n]; a new int [n] n for(int i=0;i<n;i++) {
			a[i]=sc.nextInt();
		} int i=0; int i=0; i 0 i<n i n i++ i++ i {
			a[i]=sc.nextInt();
		} {
			a[i]=sc.nextInt();
		} a[i]=sc.nextInt() a[i] a i sc.nextInt() sc.nextInt sc Arrays.sort(a) Arrays.sort Arrays a int sum=0; sum 0 for(int i=0;i<k;i++) {
			sum+=a[i];
		} int i=0; int i=0; i 0 i<k i k i++ i++ i {
			sum+=a[i];
		} {
			sum+=a[i];
		} sum+=a[i] sum a[i] a i System.out.println(sum) System.out.println System.out System System.out sum String[] args args public class Main {
	static Map<Long,ArrayList<String>> l=new TreeMap<Long,ArrayList<String>>();
	static long p[];
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		int k=sc.nextInt();
		int a[]=new int [n];
		for(int i=0;i<n;i++) {
			a[i]=sc.nextInt();
		}
		Arrays.sort(a);
		int sum=0;
		for(int i=0;i<k;i++) {
			sum+=a[i];
		}
		System.out.println(sum);
	}
	
	
} public class Main {
	static Map<Long,ArrayList<String>> l=new TreeMap<Long,ArrayList<String>>();
	static long p[];
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		int k=sc.nextInt();
		int a[]=new int [n];
		for(int i=0;i<n;i++) {
			a[i]=sc.nextInt();
		}
		Arrays.sort(a);
		int sum=0;
		for(int i=0;i<k;i++) {
			sum+=a[i];
		}
		System.out.println(sum);
	}
	
	
} Main
import java.math.BigInteger;
import java.util.*;
public class Main {
	static Map<Long,ArrayList<String>> l=new TreeMap<Long,ArrayList<String>>();
	static long p[];
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		int k=sc.nextInt();
		int a[]=new int [n];
		for(int i=0;i<n;i++) {
			a[i]=sc.nextInt();
		}
		Arrays.sort(a);
		int sum=0;
		for(int i=0;i<k;i++) {
			sum+=a[i];
		}
		System.out.println(sum);
	}
	
	
}

 
