ExtractPersonInformation

using System;
using System.Text;

namespace ExtractPersonInformation
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            int numberOfLines = int.Parse(Console.ReadLine());

            for (int i = 0; i < numberOfLines; i++)
            {
                string text = Console.ReadLine();
                int startIndexName = text.IndexOf('@')+1;
                int endIndexName = text.IndexOf('|');
                int nameLength = endIndexName - startIndexName;
                string name = text.Substring(startIndexName, nameLength);

                int startIndexAge = text.IndexOf('#')+1;
                int endIndexAge = text.IndexOf('*');
                int ageLength = endIndexAge - startIndexAge;
                string age = text.Substring(startIndexAge, ageLength);
                Console.WriteLine($"{name} is {age} years old.");
            }
        }
    }
}