PROGRAMMING:Brother Chenyang's little doubi

One day, brother Chenyang's little doubi came and told brother Chenyang that he had a difficult problem to do for him, and he couldn't solve it. Chenyang brother instantly came to interest, asked him what question. I have two yuan now. One day later, that is, the next day, my money became four yuan. The third day, my money became eight yuan. Guess how much my money became on the tenth day. Brother Chenyang came up with the answer all of a sudden, and I believe you will soon get the answer. Brother Chenyang refused to let himself suffer losses, so he revised the title to embarrass xiaodoubi. Poor little Toby was baffled, how can not think of it, let's help little Toby. Title: on the first day, brother Chenyang gave xiaodoubi a yuan to calculate how much xiaodoubi had on the x day.
###Input format:
There are several groups of test data, which are processed to the end of the file. Two integers a and X, two numbers separated by spaces.
###Output format:
How much is the output of the small doubi in the end? Each output accounts for one line.
###Input example:
Here is a set of inputs. For example:
```in
2 10
10 2
```
###Output example:
The corresponding output is given here. For example:
```out
one thousand and twenty-four
one hundred
```







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