PROGRAMMING:Find the value of S = a + AA + AAA +... + AA... A
Find the value of S = a + AA + AAA +... + AA... A (n a), where a is a number, such as 2 + 22 + 222 + 2222 + 22222 (n = 5), n (0 < n < 9) and a are input by keyboard.
###Input format:
There are several groups of test data, which are processed to the end of the file. Enter N and a for each group.
###Output format:
Each group outputs a + AA + AAA +... + AA... A (n a)
###Input example:
Here is a set of inputs. For example:
```in
5 3
8 6
```
###Output example:
The corresponding output is given here. For example:
```out
thirty-seven thousand and thirty-five
seventy-four million seventy-four thousand and sixty-eight
```
answer：If there is no answer, please comment
###Input format:
There are several groups of test data, which are processed to the end of the file. Enter N and a for each group.
###Output format:
Each group outputs a + AA + AAA +... + AA... A (n a)
###Input example:
Here is a set of inputs. For example:
```in
5 3
8 6
```
###Output example:
The corresponding output is given here. For example:
```out
thirty-seven thousand and thirty-five
seventy-four million seventy-four thousand and sixty-eight
```
answer：If there is no answer, please comment