Student_Scores

using System;
using System.Collections.Generic;
using System.Text;

namespace Student_Scores
{
    class Program
    {
        static void Main(string[] args)
        {
            var studentScores = new Dictionary<string, Dictionary<string, List<int>>>();

            string[] input = Console.ReadLine().Split(" ");

            //add gosho math 2 // creates gosho, creates math for gosho, and adds 2 to the math list
            //add gosho math 3 // gosho exists, math exists, adds 3 to the math list
            //add gosho chemistry 2 // gosho exists, creates chemistry for gosho, and adds 2 to the chemistry list
            //add pesho math 4 // creates pesho, creates math for pesho, add 4 to the math list
            //add pesho chemistry 3 // pesho exists, creates chemistry for pesho, adds 3 to the chemistry list for pesho

            while (input[0] != "print")
            {
                string studentName = input[1];
                string subject = input[2];
                int score = int.Parse(input[3]);

                if (!studentScores.ContainsKey(studentName))
                {
                    studentScores[studentName] = new Dictionary<string, List<int>>();

                    if (!studentScores[studentName].ContainsKey(subject))
                    {
                        studentScores[studentName].Add(subject, new List<int>());
                        studentScores[studentName][subject].Add(score);
                    }
                    else
                    {
                        studentScores[studentName][subject].Add(score);
                    }
                }
                else
                {
                    if (!studentScores[studentName].ContainsKey(subject))
                    {
                        studentScores[studentName].Add(subject, new List<int>());
                        studentScores[studentName][subject].Add(score);
                    }
                    else
                    {
                        studentScores[studentName][subject].Add(score);
                    }
                }

                input = Console.ReadLine().Split(" ");
            }

            var bilder = new StringBuilder();

            if(input.Length == 1)
            {
                foreach (var student in studentScores)
                {
                    bilder.AppendLine(student.Key + ":");

                    foreach (var item in student.Value)
                    {
                        bilder.AppendLine($"- {item.Key}: {string.Join(",", item.Value)}");
                    }
                }
            }
            else
            {
                string name = input[1];

                foreach (var student in studentScores)
                {
                    if(student.Key == name)
                    {
                        bilder.AppendLine(student.Key + ":");

                        foreach (var item in student.Value)
                        {
                            bilder.AppendLine($"- {item.Key}: {string.Join(",", item.Value)}");
                        }
                    }
                }
            }

            Console.WriteLine(bilder.ToString());
        }
    }
}