Problem: 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.

Examples

Input

internationalization


Output

i18n


Input

smiles


Output

s4s


Input

xyz


Output

x1z

Solution (in JAVA):

Solution:
import java.util.*;
public class Main{
 public static void main(String[] args){
   Scanner sc = new Scanner(System.in);
   String s = sc.next();

   int sl =s.length()-2;
   
   String ans = s.substring(0,1)+sl+s.substring(sl+1,sl+2);
 
   System.out.println(ans);
 }
}