#include <iostream>

using namespace std;

int main()
{
    // Holds the number the user will enter.
    int x;

    // Check numbers for positive, negative, or zero.
    while(true)
    {
        // Have the user enter in a number.
        cout << "Enter in a number: ";
        cin >> x;

        // Test the sign of the number.
        if(x>0)
        {
            cout << "Positive" << endl;
        }
        else if(x<0)
        {
            cout << "Negative" << endl;
        }
        else if(x==0)
        {
            cout << "Zero" << endl;
        }
    }

    return 0;
}