Friend You are given a Point class, which defines a point on a 2D grid (x, y). The program creates a Point in main based on user input and calls the shift() function, which should increment the coordinates by the given step. However, the code is not working, as the coordinates are private. Modify the code to fix it. Remember, functions declared as friend in a class are able to modify the private members.

#include

using namespace std;

class Point {

public:

Point(int a, int b): x(a), y(b) {};

void print() {

cout << x << ", " << y;

}

private:

int x;

int y;

};

void shift(Point &p, int step) {

p.x += step;

p.y += step;

}

int main() {

int x, y;

cin>>x>>y;

Point p(x, y);

int step;

cin>>step;

shift(p, step);

p.print();

}