#include <iostream>
#include <cmath>

using namespace std;

int main()
{
    // Number the user enters.
    double x;

    // Rounded value.
    double result;

    // Process numbers until the user enters in a 0.
    do {
        cout << "Enter in a number to round (ENTER 0 TO EXIT): ";
        cin >> x;

        // Process only valid numbers.
        if(x!=0) {
            result=floor(x+.5);
            cout << result << endl;
        }
        // The person entered in a 0.
        else cout << "Quitting..." << endl;
    }while(x!=0);

    return 0;
}