# Problem C

Snowed In

After its successful rainfall measurement campaign, the University of Chicago Weather Service is ready to undertake a new challenge: measuring snowfall. More specifically, each day a volunteer will take measurements of how deep the snow is at various points around campus. Each measurement is a non-negative integer. Given this information, we would like to compute the difference between the biggest and smallest depth observed.

## Input

The input is composed of two lines. The first line contains a single positive integer $n$ ($1 \le n \le 100$) that specifies the number of measurements. The second line contains the measurements, each separated by a single space.

## Output

You must print a single integer: the difference between the biggest and the smallest measurement in the dataset.

Sample Input 1 | Sample Output 1 |
---|---|

3 5 10 15 |
10 |

Sample Input 2 | Sample Output 2 |
---|---|

5 14 5 39 5 7 |
34 |