Teddy is developing a weather program! Among many other features, it will also give the user a summary of today's temperature. But numbers suck, so he hopes you can help him write a program to classify a temperature (in degrees Celsius) as "cold", "cool", "warm", or "hot".

Temperatures are classified as such:

Temperature Classification	Temperature Reading (in ~^\circ C~)
cold	Below ~15^\circ C~
cool	From ~15^\circ C~ to ~21^\circ C~
warm	From ~22^\circ C~ to ~30^\circ C~
hot	Above ~30^\circ C~

For this problem, you can also assume that the temperature reading is an integer.

Input Specification

The first line contains an integer ~C~ (~-50\le C\le 50~), the temperature reading in degrees Celsius.

Output Specification

One line with either "cold", "cool", "warm", or "hot" (all lowercase!), the classification of the given temperature reading

Sample Input

23

Sample Output

warm