i18n

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.

Examples

Input

internationalization

Output

i18n

Input

smiles

Output

s4s

Input

xyz

Output

x1z

inputFormat

Input

Input is given from Standard Input in the following format:

s

outputFormat

Output

Print the abbreviation of s.

Examples

Input

internationalization

Output

i18n

Input

smiles

Output

s4s

Input

xyz

Output

x1z

样例

smiles

s4s