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: Wrong Answer)

/*ex6_2
 kt125*/

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

int main(void){
    int length;
    char text[SIZE];

    fgets(text, SIZE, stdin);

    length = strlen(text); //文字列の長さ

    putchar(text[0]); //先頭文字を出力
    printf("%d", length-3); //間の文字数を出力
    putchar(text[length-2]); //末尾文字を出力
    printf("\n"); //改行

    return 0;
}