The file DebugFour3.cs has syntax and/or logical errors. Determine the problem(s), and fix the program.

using System.IO; using System;

class Program { static void Main() { int credits, year; string inputString; double tuition; const int LOWCREDITS = 12; const int HIGHCREDITS = 18; const double HOURFEE = 15000; const double DISCOUNT = 0.15; const double FLAT = 1900.00; const double RATE = 100.00; const int SENIORYEAR = 4; Console.WriteLine("How many credits? "); inputString = Console.ReadLine(); credits = Convert.ToInt32(inputString); Console.WriteLine("Year in school? "); inputString = Console.ReadLine(); year = Convert.ToInt32(inputString); if(credits > LOWCREDITS) tuition = HOURFEE * credits; else if(credits == HIGHCREDITS) tuition = FLAT; else tuition = FLAT + (credits - HIGHCREDITS) * RATE; if(year < SENIORYEAR) tuition = tuition - (tuition * DISCOUNT); Console.WriteLine("For year {0}, with {1} credits",year, credits); Console.WriteLine("Tuition is {0}", tuition.ToString("C")); } }