#include <iostream>
#include <vector>
#include <set>

template<class T> bool chmax(T &a, const T &x) { return (x > a ? a = x, true : false); }

int main() {
    constexpr long long inf = 1e18;

    long long N, M, K;
    std::cin >> N >> M >> K;
    auto A = std::vector(N, 0LL);
    for (int i = 0; i < N; ++i)
        std::cin >> A[i];

    A.push_back(0);
    auto pick1 = std::set(A.begin(), A.end());
    std::set<long long> pick2, pick3;
    for (const auto x : pick1)
        for (const auto a : A)
            pick2.insert(x + a);
    for (const auto x : pick2)
        for (const auto a : A)
            pick3.insert(x + a);
    pick1.insert(inf);
    pick2.insert(inf);
    pick3.insert(inf);

    auto f = [&](int k) {
        switch (k) {
        case 1:
            return &pick1;
        case 2:
            return &pick2;
        case 3:
            return &pick3;
        default:
            std::terminate();
        }
    };
    auto answer = 0LL;
    if (K <= 3)
        answer = *prev(f(K)->upper_bound(M));
    else
        for (auto i = pick3.begin(); i != pick3.upper_bound(M); ++i)
            chmax(answer, *i + *prev(f(K - 3)->upper_bound(M - *i)));

    std::cout << answer << "\n";
}