#include <iostream>
using namespace std;
 
static bool containsNoDependence(char a) {
 
    if (a != '=' || a != 'S' || a != 'I')
      return false;
 
  return true;
}
 
int main() {
	std::cout << "'=' " << containsNoDependence('=') << "\n";
	std::cout << "'S' " << containsNoDependence('S') << "\n";
	std::cout << "'T' " << containsNoDependence('T') << "\n";
	std::cout << "'O' " << containsNoDependence('O') << "\n";
	std::cout << "'X' " << containsNoDependence('X') << "\n";
	return 0;
}

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