PROGRAMMING:Step into computer series (6) digital auto increment

Li knows that C language is a very simple language, this phenomenon can be seen everywhere. For example, the number of self increase, so today you take the number of self increase to practice!
###Input format:
Enter a positive integer, one for each line.
###Output format:
Output the result that the corresponding number increases by 1
###Input example:
Here is a set of inputs. For example:
```in
one
```
###Output example:
The corresponding output is given here. For example:
```out
two
```







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