using System;

using System.Collections;

using System.Threading.Tasks;

public class Program

{

    public static async Task Main()

    {

        Console.WriteLine(DateTime.UtcNow.ToString("o2"));

​

    }

}

​

     struct StructuralEquatableWrapper : IEquatable<IStructuralEquatable> {

        private readonly IStructuralEquatable target;

​

        internal StructuralEquatableWrapper(IStructuralEquatable target) {

            this.target = target;

        }

​

        public bool Equals(IStructuralEquatable? other) {

            return StructuralComparisons.StructuralEqualityComparer.Equals(target, other);

        }

​

        public override bool Equals(object? obj) {

            if (obj is IStructuralEquatable typed) {

                return Equals(typed);

            }

​

            return base.Equals(obj);

        }

​

        public override readonly int GetHashCode() {

            return target.GetHashCode();

        }

​

        public static bool operator ==(StructuralEquatableWrapper self, IStructuralEquatable other) {

            return self.Equals(other);

        }

​

        public static bool operator !=(StructuralEquatableWrapper self, IStructuralEquatable other) {

            return !self.Equals(other);

        }

    }