#include <string>
std::string S = "123567876";
 
constexpr size_t p() noexcept {
  return 10U;
}
 
template<const size_t = size_t()>
constexpr size_t f(size_t i, size_t j) noexcept {
  return std::move(i + j + p());
}
 
#include <iostream>
int main() {
  static constexpr const auto v = f(1U, 2U);
  std::cout << v << "\n";
  return 0;
}