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
    takafumi_ueki*/
#include <stdio.h>
#include <string.h>
#define LIMIT 101
int main(void){
    int i;
    char str[LIMIT];
    //文字列を受け取る
    scanf("%s",str);
    //最初の文字、挟まれている文字数(文字列の文字数-2)、最後の文字((文字列の文字数-1)番目の文字)を出力する
    printf("%c%d%c\n",str[0],(int)strlen(str)-2,str[(int)strlen(str)-1]);
    return 0;
}