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.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        String a = s.substring(0, 1);
        String b = s.substring(s.length() - 1, s.length());
        int c = s.length() - 2;
        System.out.println(a + c + b);
    }
}