#include <bits/stdc++.h>

using namespace std;
const int MAXN = 25;

int A[MAXN];
int N, K, ans = 0;

void rec(int cnt, int cur, int sum) {
  if (cnt >= K || cur >= N) {
    ans = max(ans, sum);
    return;
  }
  rec(cnt, cur + 1, sum);
  sum += A[cur];
  if (sum <= K) {
    rec(cnt + 1, cur + 1, sum);
  }
}

int main() {
  scanf("%d %d", &N, &K);

  for (int i = 0; i < N; ++i) scanf("%d", &A[i]);

  rec(0, 0, 0);
  printf("%d\n", ans);
  return 0;
}