#include <iostream>
#include <vector>

int main(){
    int n, k;
    std::cin >> n >> k;
    std::vector<int> p(n);
    for(int i = 0; i < n; i++){
        std::cin >> p[i];
    }

    int sum;
    int min, minnum;
    int sum = 0;

    for(int l = 0; l < k; l++){
        min = p[0];
        minnum = 0;
        for(int i = 0; i < n; i++){
            if(p[i] < min){
                min = p[i];
                minnum = i;
            }
        }
        sum = sum + min;
        p.erase(p.begin() + minnum);
    }
    std::cout << sum << std::endl;
}