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  4. Find Angle MBC

Find Angle MBC

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is a right triangle, at .
Therefore, .

Point is the midpoint of hypotenuse .

You are given the lengths and .
Your task is to find (angle , as shown in the figure) in degrees.

Input Format

The first line contains the length of side .
The second line contains the length of side .

Constraints


  • Lengths and are natural numbers.

Output Format

Output in degrees.

Note: Round the angle to the nearest integer.

Examples:
If angle is 56.5000001°, then output 57°.
If angle is 56.5000000°, then output 57°.
If angle is 56.4999999°, then output 56°.

Sample Input

10
10

Sample Output

45°

Author

[deleted]

Difficulty

Medium

Max Score

10

Submitted By

109144

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