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 JavaScript (node.js v5.12) (judge verdict: Wrong Answer)

function Main(input) {
  var ans = ""
  var sum = 0;
  for (var i = 0; i < input.length; i++) {
    if (i === 0) {
      ans += input[i];
    } else if (i === input.length - 1) {
      ans += String(sum);
      ans += input[i];
    } else {
      sum++;
    }

  }
  console.log(ans);
}

Main(require("fs").readFileSync("/dev/stdin", "utf8"));