PROGRAMMING:Grow radish
On the other side of the mountain and the other side of the sea live a group of hardworking and drinking rabbits. There are x rabbits in total.
On the first day of May, they discussed planting radishes, but the next day they dug n holes in the field.
That night, they made a lie down body for the radish they were about to plant. As a result, all the rabbits got drunk.
The next morning, the first rabbit woke up, planted radishes in all the pits, and went to bed.
On the morning of the fourth day, the second rabbit woke up and "reversed" all the pits that were multiples of 2;
On the morning of the fifth day, the third rabbit "reversed" all the pits that were multiples of 3;
…
Finally, how many pits in the field are planted with radishes.
###Input format:
The first line is two positive integers x and n
1 ≤ x ≤n ≤10000
###Output format:
Finally, how many pits in the field are planted with radishes and then buried back.
###Input example:
```in
2 10000
```
###Output example:
```out
five thousand
```
answer：If there is no answer, please comment
On the first day of May, they discussed planting radishes, but the next day they dug n holes in the field.
That night, they made a lie down body for the radish they were about to plant. As a result, all the rabbits got drunk.
The next morning, the first rabbit woke up, planted radishes in all the pits, and went to bed.
On the morning of the fourth day, the second rabbit woke up and "reversed" all the pits that were multiples of 2;
On the morning of the fifth day, the third rabbit "reversed" all the pits that were multiples of 3;
…
Finally, how many pits in the field are planted with radishes.
###Input format:
The first line is two positive integers x and n
1 ≤ x ≤n ≤10000
###Output format:
Finally, how many pits in the field are planted with radishes and then buried back.
###Input example:
```in
2 10000
```
###Output example:
```out
five thousand
```
answer：If there is no answer, please comment