PROGRAMMING:Output lower triangular digital array
This problem requires the preparation of procedures, output n lines from the designated number of the lower left triangle digital array.
###Input format:
The input gives a positive integer n (1 ≤ n < 7) and a positive integer m in one line.
###Output format:
Output n rows of left lower triangle array starting from M. The format is shown in the output sample, where there is a space after each number.
###Input example:
```in
4 2
```
###Output example:
```out
two
3 4
5 6 7
8 9 10 11
```
answer：If there is no answer, please comment
###Input format:
The input gives a positive integer n (1 ≤ n < 7) and a positive integer m in one line.
###Output format:
Output n rows of left lower triangle array starting from M. The format is shown in the output sample, where there is a space after each number.
###Input example:
```in
4 2
```
###Output example:
```out
two
3 4
5 6 7
8 9 10 11
```
answer：If there is no answer, please comment