A Minus B


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Points: 3
Time limit: 2.0s
Memory limit: 64M

Problem type

Tudor is sitting in math class, on his laptop. Clearly, he is not paying attention in this situation. However, he gets called on by his math teacher to do some problems. Since his math teacher did not expect much from Tudor, he only needs to do a simple subtraction problem. However, simple for you and I may not be simple for Tudor, so please help him!

Input Specifications

The first and only line of input will contain integers \(A\) and \(B\) \((0 \le A,B \le 10^9)\).

Output Specifications

Output \(A-B\).

Sample Input

3 2

Sample Output

1

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