Odd and Even XOR

Madhav and Akash have learnt about Bitwise Operators in their PSCP classes. Madhav gives Akash two numbers $A$ and $B$ and asks him to do the following - - Arrange all the numbers in the range $A$ to $B$ (both inclusive) in increasing order. - Write the Odd numbers first and then the Even numbers. - Take the bitwise $XOR$ of the sequence formed. Madhav is not interested in knowing the final an