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
series2*/

#include <stdio.h>
#include <string.h>
#define STRINGLENGTH 101
int main(void){
    //各文字の箱を作って読み取り
    char inputs[STRINGLENGTH];
    scanf("%s",inputs);
    printf("%c",inputs[0]);//最初の文字の出力
    printf("%d",strlen(inputs)-2);//前後及び最後をなくした長さ
    printf("%c",inputs[strlen(inputs)-1]);//最後の文字の出力
    printf("\n");
    return 0;
}