SP6985 ARRANGE2 - Rearranging Digits
Description
Given A and B, how many numbers between A and B (with no leading 0's) rearrange their digits when multiplied by 2 ?
Input :
The first line contains the number of test cases T. T lines follow, containing two integers A and B.
Output :
Output T lines, one for each test case containing the desired answer for the corresponding test case.
Sample Input :
2
1 100
499875921 499875921
Sample Output :
0
1
Constraints :
1
Input Format
N/A
Output Format
N/A