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Description

输入两个高精度正整数M和N（M和N均小于300位）。

Input Format

两行，每行一个大整数。

Output Format

一个大整数

Sample

input

36
3

output

108

Hint

保证$M,N < 10^{300}$。

时间限制：$1 \text {s}$

空间限制：$256 \text {MB}$