using namespace std;
#include <iostream>

int main ()        
{
    
  int n;
  float pi;
  float duepi;
  char c;

  cout << "n = " << n << endl;
  cout << "pi = " << pi << endl;
  cout << "duepi = " << duepi << endl;
  cout << "c = " << c << endl;

return 0;
}