# front_back





Given a string, return a new string where the first and last chars have been exchanged.

This exercise was taken from [codingbat.com](https://codingbat.com/prob/p123384) and has been adapted for the Python language. There are many great programming exercises there, but the majority are created for Java.






### Test 1
**Input:**
```
'code'
```
**Output:**
```
'eodc'
```
### Test 2
**Input:**
```
'a'
```
**Output:**
```
'a'
```
### Test 3
**Input:**
```
'ab'
```
**Output:**
```
'ba'
```
### Test 4
**Input:**
```
'abc'
```
**Output:**
```
'cba'
```
### Test 5
**Input:**
```
''
```
**Output:**
```
''
```
### Test 6
**Input:**
```
'Chocolate'
```
**Output:**
```
'ehocolatC'
```
### Test 7
**Input:**
```
'aavJ'
```
**Output:**
```
'Java'
```
### Test 8
**Input:**
```
'hello'
```
**Output:**
```
'oellh'
```