using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        Console.WriteLine(CalculateSmallestAngleBetweenClockHands(6, 45));

    }

    public static double CalculateSmallestAngleBetweenClockHands(int hour, int minutes)

    {

        const double DegreesPerHour = 30;

        const double DegreesPerMinute = 6;

        const double MinutesPerHour = 60;

        const double DegreesInHalfCircle = 180;

        const double DegreesInCircle = 360;

​

        var hourHandAngle = hour * DegreesPerHour + minutes / MinutesPerHour * DegreesPerHour;

        var minuteHandAngle = minutes * DegreesPerMinute;

        var angleBetweenClockHands = Math.Abs(hourHandAngle - minuteHandAngle);

        var isAngleMoreThanAHalfCircle = angleBetweenClockHands > DegreesInHalfCircle;

        var smallestAngleBetweenClockHands = isAngleMoreThanAHalfCircle ? DegreesInCircle - angleBetweenClockHands : angleBetweenClockHands;

​

        return smallestAngleBetweenClockHands;

    }

}