PROGRAMMING:Keep two decimal places

Give you a number a and round it to two decimal places. If the decimal places are less than two, add 0.
###Input format:
Enter a number a
###Output format:
nothing
###Input sample 1:
Here is a set of inputs. For example:
```in
three point one four three
```
###Output sample 1:
The corresponding output is given here. For example:
```out
three point one four
```
###Input sample 2:
Here is a set of inputs. For example:
```in
three point one four five
```
###Output sample 2:
The corresponding output is given here. For example:
```out
three point one five
```
###Input sample 3:
Here is a set of inputs. For example:
```in
three
```
###Output sample 3:
The corresponding output is given here. For example:
```out
three
```







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