#include <iostream>
#include <cmath>
 
struct Num
{
    Num(int n) : n_(n) { }
    int operator ^(int n) { return std::pow(n_, n); }
    operator int() const { return n_; }
    int n_;
};
 
template <int VAL>
constexpr Num build_num_literal()
{
  return VAL;
}
 
template <int VAL, char DIGIT, char... REST>
constexpr Num build_num_literal()
{
  return build_num_literal<(10 * VAL + DIGIT - '0'), REST...>();
}
 
template <char... STR>
constexpr Num operator"" _n()
{
  return build_num_literal<0, STR...>();
}
 
int main()
{
	std::cout << (3_n ^ 4) << '\n';
	std::cout << (2_n ^ 8) << '\n';
}

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