PROGRAMMING:Step into computer series (3) decimal to hexadecimal
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###Input format:
One positive decimal integer per line
###Output format:
The hexadecimal of corresponding decimal number is given
One result per line, that is, a carriage return will be output after the result is output
###Input example:
Here is a set of inputs. For example:
```in
fifteen
```
###Output example:
The corresponding output is given here. For example:
```out
F
```
answer：If there is no answer, please comment
###Input format:
One positive decimal integer per line
###Output format:
The hexadecimal of corresponding decimal number is given
One result per line, that is, a carriage return will be output after the result is output
###Input example:
Here is a set of inputs. For example:
```in
fifteen
```
###Output example:
The corresponding output is given here. For example:
```out
F
```
answer：If there is no answer, please comment