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)

/*
 * kadai 6_2
 * kamecha
 */
#include <stdio.h>
#include <string.h>

#define SIZE 150

int main(void){
    char str[SIZE];
    int len = 0;
    fgets(str, SIZE, stdin);
    len = strlen(str);
    /*
     * lenの値は'\0'を加えられているので調整する
     */
    printf("%c%d%c\n", str[0], len-3, str[len-2]);
    return 0;
}