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Score : $200$ points

### Problem Statement

The word internationalization is sometimes abbreviated to i18n. This comes from the fact that there are $18$ letters between the first i and the last n.

You are given a string $s$ of length at least $3$ consisting of lowercase English letters. Abbreviate $s$ in the same way.

### Constraints

• $3 ≤ |s| ≤ 100$ ($|s|$ denotes the length of $s$.)
• $s$ consists of lowercase English letters.

### Input

Input is given from Standard Input in the following format:

$s$


### Output

Print the abbreviation of $s$.

### Sample Input 1

internationalization


### Sample Output 1

i18n


### Sample Input 2

smiles


### Sample Output 2

s4s


### Sample Input 3

xyz


### Sample Output 3

x1z