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namespace ExplicitOperator
{
  public class Program
  {
    public static void Main(string[] args)
    {
      int value = 5;
      Test test = value;
    }

    public class Test
    {
      public Test(double value) => Value = value;
      public Test(int value) => Value = value;
      public double Value { get; }
      public static explicit operator Test(int value) => new Test(value);
      public static implicit operator Test(double value) => new Test(value);
    }
  }
}