#include <iostream>
using namespace std;
 
struct jerkface
{
    const jerkface &operator()(const jerkface &) const
    {
        return *this;
    }
    friend istream &operator>>(istream &is, jerkface &)
    {
        return is;
    }
    friend ostream &operator<<(ostream &os, const jerkface &)
    {
        return os;
    }
};
 
int main()
{
    jerkface rhubarb;
    cin >> rhubarb;
    rhubarb = rhubarb( rhubarb );
    cout << rhubarb;
}

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