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++14 (GCC 5.4.1) (judge verdict: Accepted)

#include "bits/stdc++.h"
using namespace std;
const int MOD = 1e9 + 7;
typedef long long lint;
const int INF =1e7;
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define trep(i, k, n) for (int i = (k); i < (int)(n); ++i)
typedef pair<int,int> P;
typedef vector<int> vi;
typedef vector<vi> vvi;
int main(){
    string s;
    cin >> s;
    cout << s[0] << s.size() - 2 << s[s.size()-1] << endl;
    return 0;
}