=====Problem Statement=====
ABC is a right triangle, 90°, at B. Therefore, ANGLE{ABC} = 90°.
Point M is the midpoint of hypotenuse AC.
You are given the lengths AB and BC.
Your task is to find ANGLE{MBC} (angle θ°, as shown in the figure) in degrees.
=====Input Format=====
The first contains the length of side AB.
The second line contains the length of side BC.
=====Constraints=====
0<AB≤100
0<BC≤100
Lengths AB and BC are natural numbers.
=====Output Format=====
Output ANGLE{MBC} 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°.
import math
ab = float(input())
bc = float(input())
ac = math.sqrt((ab*ab)+(bc*bc))
bm = ac / 2.0
mc = bm
#let, 
b = mc
c = bm
a = bc
#where b=c
angel_b_radian = math.acos(a / (2*b))
angel_b_degree = int(round((180 * angel_b_radian) / math.pi))
output_str = str(angel_b_degree)+'°'
print(output_str)

import math
ab = float(input())
bc = float(input())
ac = math.sqrt((ab*ab)+(bc*bc))
bm = ac / 2.0
mc = bm
#let, 
b = mc
c = bm
a = bc
#where b=c
angel_b_radian = math.acos(a / (2*b))
angel_b_degree = int(round((180 * angel_b_radian) / math.pi))
output_str = str(angel_b_degree)+'°'
print(output_str)
