PROGRAMMING:Human fever

The average normal body temperature is between 36 ℃ and 37 ℃ (armpit). If the temperature exceeds 37 ℃, it is considered that there is fever. Program the input temperature (real number) and output whether there is fever or not.
#####Input format:
A real number.
#####Output format:
Have a fever
No fever output: no
#####Input example:
```in
thirty-nine point two
```
#####Output example:
```out
have a fever
```
#####Input example:
```in
thirty-five
```
#####Output example:
```out
no
```







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