Problem Description

Given two positive integers $A$ and $B$, calculate the value of $A \times B$. Pay attention to the range of the product and the choice of data types.

Input Format

A single line containing two positive integers $A$ and $B$, separated by a single space. $1 \le A, B \le 50000$.

Output Format

An integer, representing the value of $A \times B$.

Sample Input and Output

Sample Input #1

3 4

Sample Output #1

12

Sample Input #2

36 18

Sample Output #2

648

见题面 Input 部分

见题面 Output 部分