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 sc = new Scanner(System.in);
		
		String s = sc.next();
		String head = s.substring(0,1);
		int len = s.length();
		String tail = s.substring(len-1,len);
		String mid = String.valueOf(len-2);
		// 出力
		System.out.println(head + mid + tail);
	}
}