#include <iostream>

using namespace std;

int N, M;

int cards[101];

bool include[101];

int ans = 0;

void find(int idx, int selected) {

if (idx == N+1 && selected == 3) {

int sum = 0;

for (int i = 1; i <= N; i++) {

if (include[i]) {

sum += cards[i];

//cout << "1 ";

}

//else cout << "0 ";

}

//cout << "\n";

if (sum > ans && M >= sum) ans = sum;

}

if (idx == N + 1 || selected > 3) return;

include[idx] = true;

find(idx + 1, selected + 1);

include[idx] = false;

find(idx + 1, selected);

}

int main()

{

int i;

cin >> N >> M;

for (i = 1; i <= N; i++) {

cin >> cards[i];

}

find(1, 0);

cout << ans;

}