#include <bits/stdc++.h>
#define rep(i, begin, end) for(int i = begin; i < end; i++)

template <typename T>
auto make_vector(size_t sz, T t) {
  return std::vector<T>(sz, t);
}
template <size_t N, typename T, typename U, std::enable_if_t<
  N == 1, std::nullptr_t> = nullptr>
auto make_higher_vector(size_t sz, U u) {
  return make_vector(sz, T(u));
}
template <size_t N, typename T, std::enable_if_t<
  N == 1, std::nullptr_t> = nullptr>
auto make_higher_vector(size_t sz) {
  return std::vector<T>(sz);
}
template <size_t N, typename T, typename... Args, std::enable_if_t<
  N != 1, std::nullptr_t> = nullptr>
auto make_higher_vector(size_t a, Args... args) {
  return make_vector(a, make_higher_vector<N - 1, T>(args...));
}
template <typename T, typename Size_t>
auto& at(T& t, Size_t i) {
  return t.at(i);
}
template <typename T, typename Size_t, typename... Args>
auto& at(T& t, Size_t i, Args... args) {
  return at(t.at(i), args...);
}

template<typename T, typename U>
inline auto cmn (T& a, U b) {if (a > b) {a = b; return true;} return false;}
template<typename T, typename U>
inline auto cmx (T& a, U b) {if (a < b) {a = b; return true;} return false;}

int main()
{
  std::cin.tie(0); std::cin.sync_with_stdio(false);
  int n, m, k;
  std::cin >> n >> m >> k;
  std::vector<int> a(n + 1);
  for (auto& x : a) std::cin >> x;
  auto dp = make_higher_vector<2, long long>(n + 2, m + 1, k);
  rep(i, 0, n + 1) rep(j, 0, m + 1)
  {
    auto crr = at(dp, i, j);
    cmx(at(dp, i + 1, j), crr);
    if (j < m)
    {
      cmx(at(dp, i, j + 1), crr);
      rep(k, i + 1, n + 1)
      {
        cmx(
          at(dp, k + 1, j + 1),
          crr % a.at(i) + crr / a.at(i) * a.at(k)
        );
      }
    }
  }
  std::cout << dp.back().back() << std::endl;
  return 0;
}