#include <iostream>
#include <ostream>
using namespace std;
 
int test(int&&)
{
    return 1;
}
double test(const int&)
{
    return 2.5;
};
 
int main()
{
    int t;
    cout << test(t) << endl;
    cout << test(0) << endl;
    return 0;
}
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