ACB Angle

 

 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°
import math
degree_sign = u'\N{DEGREE SIGN}'
print(  str(round(math.degrees(math.atan(int(input())/int(input()))) ))+str(degree_sign))

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