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 in = new Scanner(System.in);

     String str = in.nextLine();

     int len = str.length() - 2;

     System.out.println(str.substring(0, 1) + len + str.substring(len+1,len+2));

     in.close();
  }
}