#include <iostream>
using namespace std;

int main()
{
    cout << ("Input x and y \n");
    float x, y;
    cin >> x >> y;
    if ((y >= 0 && y <= 1 - abs(x)) || (y >= -1 && y < 0 && x >= -1 && x <= 1)) {
        cout << ("Point belongs to this set");
    }
    else {
        cout << ("The point does not belong to this set");
    }
    return 0;

}