public static void Main()
Console.WriteLine("Enter week number(1-7):");
weeknumber = Convert.ToInt16(Console.ReadLine());
case 1: Console.WriteLine("Monday");
case 2: Console.WriteLine("Tuesday");
case 3: Console.WriteLine("Wednesday");
case 4: Console.WriteLine("Thursday");
case 5: Console.WriteLine("Friday");
case 6: Console.WriteLine("Saturday");
case 7: Console.WriteLine("Sunday");
Console.WriteLine("Invalid input! Please enter week no. between 1-7.");