Practice Coding with the exercise "CGS minifier"

Statement

Goal

Your program must output a minified version of a CodinGame script formatted as CGS.

To do so, except for names between apostrophes ('), remove spaces, tabulations and display the code on one line.
In addition, variables written between two ($) must be minified, the first variable of the script will be $a$, the second one $b$, etc.

Input

Line 1: The number N of CGS lines to be minified.
The N following lines: The CGS content.

Output

Line 1: The minified CGS content.

Constraints

0 < N < 10
0 ≤ number of variables in CGS content < 10

Example

Input

4
(
    $hello$ = 'hello';
    print $hello$;
)

Output

($a$='hello';print$a$;)

Solve it

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