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 C# (.NET Core 3.1.201) (judge verdict: Accepted)

using System;

class program
{
  static void Main()
  {
    string input = Console.ReadLine();
    int count = input.Length - 2;
    string ans = input.Substring(0,1) + Convert.ToString(count) + input.Substring(input.Length - 1,1);
    Console.WriteLine(ans);
  }
}