PROGRAMMING:A * B problem
###Task description
Enter two positive integers a and B to find a * B.
###Input format:
A line containing two positive integers a and B separated by a single space. 1 <= A,B <= 50000。
###Output format:
An integer, the value of a * B.
###Input example:
```in
3 4
```
###Output example:
```out
twelve
```
###Tips
Pay attention to the range of product and the choice of data type. The input / output format specifier of type long long int is% LLD.
###Title Source
This topic is selected from openjudge website http://noi.openjudge.cn/ch0103/19/ .
answer：If there is no answer, please comment
Enter two positive integers a and B to find a * B.
###Input format:
A line containing two positive integers a and B separated by a single space. 1 <= A,B <= 50000。
###Output format:
An integer, the value of a * B.
###Input example:
```in
3 4
```
###Output example:
```out
twelve
```
###Tips
Pay attention to the range of product and the choice of data type. The input / output format specifier of type long long int is% LLD.
###Title Source
This topic is selected from openjudge website http://noi.openjudge.cn/ch0103/19/ .
answer：If there is no answer, please comment