Allergic rhinitis is an allergic inflammation of the nasal airways. It occurs when an allergen — such as pollen, dust or animal dander (particles of shed skin and hair) — is inhaled by an individual with a sensitized immune system. In such individuals, the allergen triggers the production of the antibody immunoglobulin E (IgE), which binds to mast cells and basophils containing histamine. When caused by pollens of any plants, it is called pollinosis, and if specifically caused by grass pollens, it is known as hay fever. While symptoms resembling a cold or flu can be produced by an allergic reaction to pollen from plants and grasses, including those used to make hay, it does not cause a fever.

Pollen grains from a variety of common plants can cause hay fever. Enlarged 500×, ~400 µm wide.

The Belgian Scientific Institute of Public Health measures the amount of grass pollen across the Belgian territory to give a recommendation on the risk for people who suffer from allergies. Depending on the number of measured grains of pollen, this risk is expressed as follows:

risk	condition
no	absence of pollen
weak	1 to 5 pollen/m$${}^3$$
moderate	6 to 30 pollen/m$${}^3$$
high	more than 30 pollen/m$${}^3$$

Input

The pollencount per cubic metre.

Output

A sentence that states the risk for an allergic reaction according to the scale used by the Institute. Use "There is recommendation risk of an allergic reaction at n pollen per cubic metre." as a template for the recommendation, where snippets in italic font have to be filled up based on given and computed information.

Example

Input:

Output:

There is moderate risk of an allergic reaction at 18 pollen per cubic metre.