class DayOfYear
{
    public:
    // constructors
    DayOfYear ( int initialMonth = 1, int initialDay = 1 );
    
    // accessors
    int GetMonthNumber ( ) const;
    int GetDay( ) const;

    // mutators
    void Set( int newMonth, int newDay );
    void Set( int newMonth );

    // services
    void Input( );
    void Output( ) const;

    private:
    int m_month;
    int m_day;
};