You are given 2 integers $a, b$. Calculate they Greatest Common Divisor (GCD) and Lowest Common Multiple (LCM).
- The GCD of two integers, which are not all zero, is the largest positive integer that divides each of the integers.
- The LCM of two numbers is the smallest number that is a multiple of both of them.
### Input
- The first line contains 2 integers $a, b$.
### Output
- GCD and LCM of $a, b$.
### Constraints
- $1 \le a, b \le 10^9$.
### Example
Input:
```
4 6
```
Output:
```
2 12
```
