4、大整数乘法

Descr iption

求两个不超过200位的非负整数的积。

Input

有两行，每行是一个不超过200位的非负整数，没有多余的前导0。

Output

一行，即相乘后的结果。结果里不能有多余的前导0，即如果结果是342，那么就不能输出为0342。

Sample Input

12345678900

98765432100

Sample Output

1219326311126352690000

-4, Large Integer Multiplication Descr iption demand not more than two hundred two non-negative integers product. Input are two lines, each line is a no more than 200 non-negative integer, no extra leading 0. Output line, that is, multiply the result. Results in not have the extra leading 0, that is, if the result is 342, then no output is 0342. Sample Input 12345678900 98765432100 Sample Output 1219326311126352690000