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 Python (3.4.3) (judge verdict: Wrong Answer)

import sys

lines = sys.stdin.readlines()

res = ''
cnt = 0
for n, c in enumerate(lines[0]):
  if n == 0:
    res += c
  elif n == len(lines[0]) - 1:
    res += str(cnt)
    res += c
  else:
    cnt += 1
print(res)