PROGRAMMING:Digital triangle
Bessie taught the cows to build a digital triangle. It is constructed from two numbers: size and seed. The size $$n (1 < = n < = 20) $$determines how many rows the triangle has, and the seed $$s (1 < = s < = 9) $$determines the first number of the triangle. Here are two examples:
$$N=5,S=3$$ $$ \space\space \space\space \space\space \space\space \space\space \space$$ $$N=6,S=1$$
$$3\space\space 4\space \space 6\space\space 9\space\space 4$$ $$ \space\space \space\space \space\space \space\space \space\space \space\space\space \space\space\space \space$$ $$1\space\space 2\space \space 4\space \space 7\space \space 2\space \space7$$
$$\space\space\space\space 5\space \space 7\space\space 1\space\space 5$$ $$ \space\space \space\space \space\space \space\space \space\space \space\space\space \space\space\space \space$$ $$\space\space\space\space 3\space \space 5\space \space 8\space \space 3\space \space8$$
$$\space\space\space\space \space\space\space \space 8\space\space 2\space\space 6$$ $$ \space\space \space\space \space\space \space\space \space\space \space\space\space \space\space\space \space$$ $$\space\space\space\space\space\space\space \space 6\space \space 9\space \space 4\space \space9$$
$$\space\space\space\space \space\space\space \space \space\space\space\space 3\space\space 7$$ $$ \space\space \space\space \space\space \space\space \space\space \space\space\space \space\space\space \space$$ $$\space\space\space\space\space\space\space \space \space\space\space \space 1\space \space 5\space \space1$$
$$\space\space\space\space \space\space\space \space \space\space\space\space \space\space\space\space 8$$ $$ \space\space \space\space \space\space \space\space \space\space \space\space\space \space\space\space \space$$ $$\space\space\space\space\space\space\space \space \space\space\space \space \space\space\space \space 6\space \space2$$
$$\space\space\space\space \space\space\space \space \space\space\space\space \space\space\space\space \space\space$$ $$ \space\space \space\space \space\space \space\space \space\space \space\space\space \space\space\space \space$$ $$\space\space\space\space\space\space\space \space \space\space\space \space \space\space\space \space \space \space\space \space3$$
There is no space in front of the first line of the number triangle. Analyze the above examples, find the rules, and then write a program to output the corresponding digital triangle according to the input size $$n (1 < = n < = 20) $$and seed $$s (1 < = s < = 9) $$.
###Input format:
One line: integers n and s separated by two spaces
###Output format:
N lines: as shown in the figure triangle, pay attention to the end of each line can not have a space.
###Input example:
Here is a set of inputs. For example:
```in
5 3
```
###Output example:
The corresponding output is given here. For example:
```out
3 4 6 9 4
5 7 1 5
8 2 6
3 7
eight
```
answer：If there is no answer, please comment
$$N=5,S=3$$ $$ \space\space \space\space \space\space \space\space \space\space \space$$ $$N=6,S=1$$
$$3\space\space 4\space \space 6\space\space 9\space\space 4$$ $$ \space\space \space\space \space\space \space\space \space\space \space\space\space \space\space\space \space$$ $$1\space\space 2\space \space 4\space \space 7\space \space 2\space \space7$$
$$\space\space\space\space 5\space \space 7\space\space 1\space\space 5$$ $$ \space\space \space\space \space\space \space\space \space\space \space\space\space \space\space\space \space$$ $$\space\space\space\space 3\space \space 5\space \space 8\space \space 3\space \space8$$
$$\space\space\space\space \space\space\space \space 8\space\space 2\space\space 6$$ $$ \space\space \space\space \space\space \space\space \space\space \space\space\space \space\space\space \space$$ $$\space\space\space\space\space\space\space \space 6\space \space 9\space \space 4\space \space9$$
$$\space\space\space\space \space\space\space \space \space\space\space\space 3\space\space 7$$ $$ \space\space \space\space \space\space \space\space \space\space \space\space\space \space\space\space \space$$ $$\space\space\space\space\space\space\space \space \space\space\space \space 1\space \space 5\space \space1$$
$$\space\space\space\space \space\space\space \space \space\space\space\space \space\space\space\space 8$$ $$ \space\space \space\space \space\space \space\space \space\space \space\space\space \space\space\space \space$$ $$\space\space\space\space\space\space\space \space \space\space\space \space \space\space\space \space 6\space \space2$$
$$\space\space\space\space \space\space\space \space \space\space\space\space \space\space\space\space \space\space$$ $$ \space\space \space\space \space\space \space\space \space\space \space\space\space \space\space\space \space$$ $$\space\space\space\space\space\space\space \space \space\space\space \space \space\space\space \space \space \space\space \space3$$
There is no space in front of the first line of the number triangle. Analyze the above examples, find the rules, and then write a program to output the corresponding digital triangle according to the input size $$n (1 < = n < = 20) $$and seed $$s (1 < = s < = 9) $$.
###Input format:
One line: integers n and s separated by two spaces
###Output format:
N lines: as shown in the figure triangle, pay attention to the end of each line can not have a space.
###Input example:
Here is a set of inputs. For example:
```in
5 3
```
###Output example:
The corresponding output is given here. For example:
```out
3 4 6 9 4
5 7 1 5
8 2 6
3 7
eight
```
answer：If there is no answer, please comment