Given two strings low and high that represent two integers low and high where low <= high, return the number of strobogrammatic numbers in the range [low, high].
A strobogrammatic number is a number that looks the same when rotated 180 degrees (looked at upside down).
Example 1:
Input: low = "50", high = "100" Output: 3
Example 2:
Input: low = "0", high = "0" Output: 1
Constraints:
1 <= low.length, high.length <= 15lowandhighconsist of only digits.low <= highlowandhighdo not contain any leading zeros except for zero itself.