#include <iostream>

using namespace std;

template<class T>
void swapEverything(T &a,T  &b)
{
  T c = a;
  a = b;
  b = c;
}


template<class anotherName>
void printVariables(anotherName a, anotherName b)
{
  cout << a << " " << b << endl;
}

int main() 
{

  int a=5;
  int b=10;
 
  printVariables(a,b);
  swapEverything(a,b);
  printVariables(a,b);

  float c=1.2;
  float d=7.5;

  printVariables(c,d);
  swapEverything(c,d);
  printVariables(c,d);

 
  return 0;
}