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Flip Bits To Convert A To B

1. You are given two numbers A and B. 2. You have to print the count of bits needed to be flipped to convert 'A' to 'B'.

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Flip Bits To Convert A To B

easy

1. You are given two numbers A and B. 2. You have to print the count of bits needed to be flipped to convert 'A' to 'B'.

Constraints

-10^9 <= A,B <= 10^9

Format

Input

2 numbers A and B

Output

A number

Example

Sample Input

57 76

Sample Output

5

Question Video

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