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 (GCC 5.4.1) (judge verdict: Accepted)

/* kadai6_2
   nabe9393 */
 
#include<stdio.h>
#include<string.h>
 
int main(void){
  int len_word;
  //NULL文字入れて101字以内
  char str[101];
  //入力
  scanf("%s",str);
  //文字の長さを計算
  len_word = strlen(str);
  //一文字目と最後の文字と文字列の長さから２引いたものを書いて終了
  printf("%c%d%c\n",str[0],len_word-2,str[len_word-1]);
  return 0;
}