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Very-Easy

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Mr.Hola does not like Sameer at all and they always fight with each other. As Sammer is good in guessing the pattern so Mr. Hola gives him a pattern to guess. Help Sameer to find out the pattern.
input
The input file consists of several lines. The line number i contains a two positive integers a and b representing the i-th pair. [0<=a<=b<=10^6]
maximum query <=10^3
output
The output file should contain the same number of lines as the input file. The i-th line should contain one number – the required value of the pattern.

Input:
1 4
2 3
4 10
7 10
8 100
200 300
255 275

Output:

5
5
12
7
1043
4048
1060

Problem Setter : Avinash Gurjar

SAMPLE INPUT
1 4 
2 3
4 10
7 10
8 100
200 300
255 275
SAMPLE OUTPUT
5
5
12
7
1043
4048
1060
Time Limit: 5.0 sec(s) for each input file.
Memory Limit: 256 MB
Source Limit: 1024 KB
Marking Scheme: Marks are awarded when all the testcases pass.
Allowed Languages: C, C++, C++14, Clojure, C#, D, Erlang, F#, Go, Groovy, Haskell, Java, Java 8, JavaScript(Rhino), JavaScript(Node.js), Julia, Kotlin, Lisp, Lisp (SBCL), Lua, Objective-C, OCaml, Octave, Pascal, Perl, PHP, Python, Python 3, R(RScript), Racket, Ruby, Rust, Scala, Swift, Visual Basic

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