Problem:
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

Solution in Java7 (OpenJDK 1.7.0) (judge verdict: Accepted)

import java.util.*;

public class Main {
    public static void main(String[] args) {

      Scanner sc = new Scanner(System.in);
      
      String word  = sc.next();
      
      // 先頭文字を抜き出す
      String top = word.substring(0,1);
      
      // 末尾文字を抜き出す
      String end = word.substring(word.length() -1);
      
      // 先頭と末尾の間の文字数を抜き出す
      int s = word.length() -2;
      
      System.out.println(top + s + end);
    }
}