Print a spiral matrix of size $n$ rows and $m$ columns.
For example, with a matrix of $5$ rows and $6$ columns:
```
1 2 3 4 5 6
18 19 20 21 22 7
17 28 29 30 23 8
16 27 26 25 24 9
15 14 13 12 11 10
```
### Input
- A single line containing two integers $n$ and $m$.
### Output
- Print the spiral matrix.
### Constraints
- $1 \le n, m \le 100$.
### Sample test
```
3 3
```
Output:
```
1 2 3
8 9 4
7 6 5
```