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
    nnasy */

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

int main(void) {
    // 宣言と入力
    char word[256];
    int lenword;
    scanf("%s", &word);
    lenword = strlen(word);

    // 頭文字、頭文字と末尾文字を除いた文字数、末尾文字の出力
    printf("%c%d%c\n", word[0], lenword-2, word[lenword-1]);
    return 0;
}