# Practice on Toph

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## Clock Math

Limits: 1s, 512 MB

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

#### Input

The input will contain two integers: **H** (0 ≤ H < 12) and **M** (0 ≤ M < 60).

#### Output

Print the angle in degrees (accurate to 10^{-4}).

#### Samples

Input | Output |
---|---|

10 15 | 142.5000000 |

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