Multiplying polynomials#1075

Multiplying polynomials

1 second

64 megabytes

Very easy

Two polynomials in symbolic form in variable $x$ with integer coefficients are given. Output their product in symbolic form, with terms in descending order of degrees.

The degree of each polynomial does not exceed $10$ , and the absolute value of each coefficient does not exceed $1 0^{4}$ 10^4.

Input

The two polynomials are given on separate lines.

Output

Output the resulting polynomial in a single line.

Examples

Example 1

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Example 2

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1 0^{4}