#include <iostream>
#include <type_traits>
using namespace std;

int main()
{
  cout << boolalpha;

  cout << is_same<int, unsigned int>::value << endl;
  cout << is_same<int, signed int>::value << endl;

  cout << endl;

  cout << is_same<char, unsigned char>::value << endl;
  cout << is_same<char, signed char>::value << endl;
}