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)

/* ex6_2
   seira3 */

#include <stdio.h>
#include <string.h>
#define SIZE 101

int main(void){
    int length; //配列の長さを格納するint型の変数を宣言
    char str[SIZE]; //入力を入れる配列を宣言
    for(int i = 0; i < SIZE; i++){ //strを初期化
        str[i] = '0';
    }
    scanf("%s",str); //strに入力
    length = strlen(str); //文字列の長さを取得し代入
    printf("%c%d%c\n",str[0],length-2,str[length-1]); //問題文の指定に沿って出力
    return 0;
}