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 (Clang 3.8.0) (judge verdict: Accepted)

#include <stdio.h>

int str_length(const char s[])
{
    int len = 0;
    while (s[len])
        len++;
    return len;
}

int main()
{
    char a[100];
    int i;

    scanf("%s", a);
    int length = str_length(a);
    printf("%c%d%c", a[0], length-2, a[length-1]);


    return 0;
}