# not_string





Given a string, return a new string where "not " has been added to the front. However, if the string already begins with "not", return the string unchanged. Note: use .equals() to compare 2 strings.

This exercise was taken from [codingbat.com](https://codingbat.com/prob/p191914) 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:**
```
'candy'
```
**Output:**
```
'not candy'
```
### Test 2
**Input:**
```
'x'
```
**Output:**
```
'not x'
```
### Test 3
**Input:**
```
'not bad'
```
**Output:**
```
'not bad'
```
### Test 4
**Input:**
```
'bad'
```
**Output:**
```
'not bad'
```
### Test 5
**Input:**
```
'not'
```
**Output:**
```
'not'
```
### Test 6
**Input:**
```
'is not'
```
**Output:**
```
'not is not'
```
### Test 7
**Input:**
```
'no'
```
**Output:**
```
'not no'
```