/*#include<iostream>
#include<iomanip>
#include<stdlib.h>
using namespace std;
int main()
{
system("color 3E");
int a=10;
int &b=a;
a=a*a;
cout<<a<<" "<<b<<endl;
b=b/5;
cout<<a<<" "<<b<<endl;
return 0;
}*/
#include<iostream>
#include<iomanip>
#include<stdlib.h>
using namespace std;
void swap(int &a,int &b)
{
int tem;
tem=a;
a=b;
b=tem;
}
int main()
{
system("color 3E");
int i=3,j=5;
swap(i,j);
cout<<i<<" "<<j<<endl;
int a=8,b=520;
const int &c=b;
// c=3;
cout<<c<<endl;
b=b+a;
cout<<b<<endl;
int t=9;
const int &n=t+9;
cout<<n<<endl;
return 0;
}