	import java.util.Scanner;
	import java.util.Arrays;

	public class Main{

		public static void main(String[] args){

			Scanner sc = new Scanner(System.in);
			int type = sc.nextInt();
			int buy = sc.nextInt();
			int typeArray[] = new int[type];

			for(int i=0; i<typeArray.length; i++){
				typeArray[i]=sc.nextInt();
			}
			Arrays.sort(typeArray);

			int sum =0;
			for(int j=0; j<buy; j++){
				sum = sum + typeArray[j];
		}
		System.out.println(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