Limits 1s, 512 MB

The four angles of a quadrilateral are defined as follows: ∠A = (X * Y)°, ∠B = (X * 2 * Y)°, ∠C = ∠D - 17°, and ∠D = N, respectively. You will be given the value of X as input, but Y is an unknown value that you have to figure out. Your task is to find the angle value of ∠B.

Input

The first line of input contains a single integer X ( 1 ≤ X ≤ 10^18 )

The second line of input takes the value of N ( 20 <= N <= 150 )

Output

Find the angle according to the problem statement, round it to two decimal places and print one line of output.

Samples

InputOutput
10
25
218.00 Degree
InputOutput
461
150
51.33 Degree

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Statistics

93% Solution Ratio
TanbirTopEarliest, 2M ago
adnanakib2017Fastest, 0.0s
Nayma16Lightest, 5.2 MB
FahimRShortest, 176B
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