Multiply Strings

MediumMath
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MathStringSimulation

Two non-negative integers are given as strings, possibly with hundreds of digits. Multiply them and return the product as a string, without converting the whole strings to integers with a big-number library.

Input

Line 1: the first number. Line 2: the second number. Neither has leading zeros, except the number 0 itself.

Output

Print the product.

Constraints

1 <= length of each number <= 200

Example 1
Input
123
456
Output
56088

123 * 456 = 56088.

Hints

Multiply Strings - Medium Math Problem | Skill Shiksha