#include <iostream>

template<long I> class Fib : Fib<I-1>{
public:
  const static long n = Fib<I-2>::n + Fib<I-1>::n;
};

template <> class Fib<1>{
public:
  const static long n{1};
};

template <> class Fib<0>{
public:
  const static long n{1};
};

int main() {
  std::cout<< Fib<52>::n << "\n";
  return 0;
}