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
  bonbonc */

#include<stdio.h>
#include<string.h>

int main(void){
	char str[101];/*文字列を格納する配列*/
	int length;/*文字列の長さ*/
	scanf("%s",str);/*文字列を受け取る*/
	length = (int)strlen(str);/*lengthに文字列の長さを格納する*/

	printf("%c",str[0]);/*先頭の文字を出力*/
	printf("%d",length-2)/*文字列の長さ-2を出力*/;
	printf("%c\n",str[length-1])/*最後の文字を出力して改行*/;
	return 0;
}