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Clock Math

Limits 1s, 512 MB

Given a time (hours as HH and minutes as MM), determine the smaller angle between the two hands of a clock showing the time and print it.

Input

The input will contain two integers: HH (0H<120 \le H < 12) and MM (0M<600 \le M < 60).

Output

Print the angle in degrees (accurate to 10410^{-4}).

Sample

InputOutput
10 15
142.5000000

Discussion

Statistics


87% Solution Ratio

allocophobiaEarliest, Nov '18

allocophobiaFastest, 0.0s

wasimur_01Lightest, 0 B

n4o847Shortest, 43B

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