Given an array $A$ with $n$ integer elements, find the largest difference between two consecutive elements in the array.
### Input
- The first line contains an integer $n$.
- The second line contains $n$ integers $A_i$.
### Output
- Print the maximum difference between two consecutive elements in the array.
### Constraints
- $2 \le n \le 1000$.
- $1 \le A_i \le 1000$.
### Sample
Input:
```
6
1 7 5 4 10 1
```
Output:
```
9
```
