KOPC12H  K12OE Numbers
Rishi loves numbers and number patterns very much. He is interested in finding OE numbers in a range [a, b]. An OE number is a number whose sum of even digits [0, 2, 4, 6, 8] is greater than sum of odd digits [1, 3, 5, 7, 9]. Help him to count how many OE numbers are in range [a, b] { a and b inclusive }
Example:  4563: O = 5+3 = 8, E = 4+6 = 10, E > O, so 4563 is an OE number  1233, O = 1+3+3 = 7, E = 2, E < O, so 1233 is not an OE number  10, O = 1, E = 0 E < O, so 10 is not an OE number
Input
The first line of the input file contains T which denotes the number of Test cases. The next T lines contains two space seperated integers a and b.
1 <= a <= b <=10^8
T <= 35.
Output
Print the number of OE numbers in range [a, b] {one number per line}
Example
Input: 3 1 1 2 10 1 100000000 Output: 0 4 38379932
hide comments
pratham_1:
20171018 12:32:11
CakeWalk;) 

the_phoenixx:
20170702 07:59:39
Nice digitdp !! 

Sigma Kappa:
20170626 02:32:43
Excellent problem. 

#vaidy_MIT#:
20120406 18:00:11
@Ab007 ...frm kurukshetra..2012 ..conducted by anna university..


Abhishek Verma:
20120205 15:25:49
good one...gt ac :)

Added by:  Radhakrishnan Venkataramani 
Date:  20120131 
Time limit:  0.100s0.561s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ASM64 