# Multiplying polynomials

Very easy

Execution time limit is 1 second

Runtime memory usage limit is 64 megabytes

We introduce a symbolic form of two polynomials in x with integer coefficients. Output of the product in descending order of degrees - also in a symbolic form.

The degree of initial polynomials are not over 10, the coefficients of initial polynomials modulo no more than 10^4.

## Input

The two lines are polynomials.

## Output

In a single line shows a polynomial.

## Examples

Input #1

Answer #1

Input #2

Answer #2

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