String Separator

Background

Problem Description

Given a string, compute recursively a new string where all the adjacent characters are now separated by a "*".

Input Format

Input is given from standard input in the following format.

$S$

Output Format

Output is printed to standard output in the following format.

The new string with '*' separators.

Sample

hello

h*e*l*l*o

abc

a*b*c

ab

a*b

Sample Explanation

For the input "hello\