Watson likes to challenge Sherlock's math ability. He will provide a starting and ending value describing a range of integers. Sherlock must determine the number of square integers within that range, inclusive of the endpoints.

**Note:** A square integer is an integer which is the square of an integer, e.g. 1, 4, 9, 16, 25

For example, the range is a = 24, b = 49, inclusive. There are three square integers in the range: 25, 36, 49.

**Function Description**

Complete the squares function in the editor below. It should return an integer representing the number of square integers in the inclusive range from a to b.

squares has the following parameter(s):

a: an integer, the lower range boundary b: an integer, the uppere range boundary

**Input Format**

The first line contains q, the number of test cases.

Each of the next q lines contains two space-separated integers denoting a and b, the starting and ending integers in the ranges.

**Constraints**

**Output Format**

For each test case, print the number of square integers in the range on a new line.

**Sample Input**

2 3 9 17 24

**Sample Output**

2 0

**Explanation**

Test Case #00: In range [3, 9], 4 and 9 are the two square integers.

Test Case #01: In range [17, 24], there are no square integers.

**Solution:**

```
import math
def squares_between(a, b):
count = math.floor(math.sqrt(b)) - math.floor(math.sqrt(a - 1))
return count
if __name__ == '__main__':
test_count = int(input())
for _ in range(test_count):
a, b = tuple(int(pair) for pair in input().split())
print(squares_between(a, b))
```