def __new__(mcs, cls, bases, classdict):
    """ This is executed at the beginning of runtime when CRS class is created
        """
    for direction, direction_value in [('N', '6'), ('S', '7')]:
        for zone in range(1, 61):
            classdict['UTM_{}{}'.format(zone, direction)] = '32{}{}'.format(
                direction_value, str(zone).zfill(2))
    return super().__new__(mcs, cls, bases, classdict)
