using System; class HelloWorld { static void Main() { Console.WriteLine("Hello World"); int counter=1; do { Console.WriteLine($"{counter} {counter*12}"); counter=counter+1; }while(counter<=10); } } Console.WriteLine("Hello World"); int start=50; int stop=80; int sum=0; do{ sum=sum+start; start=start+1; }while(start<stop); Console.WriteLine($"The sum is {sum}"); } } using System; class HelloWorld { static void Main() { Console.WriteLine("Hello World"); int start=50; int stop=80; int sum=0; do{ sum=sum+start; Console.WriteLine($"The sum in the loop is {sum}"); start=start+1; }while(start<stop); Console.WriteLine($"The sum {sum}"); } } int sum=0; bool tocontinue=true; do { Console.Write("Enter a positive number:"); int number=Convert.ToInt32(Console.ReadLine()); if(number>=0) sum=sum+number; else tocontinue=false; }while(tocontinue); Console.WriteLine($"The sum is {sum}"); } } } using System; class HelloWorld { static void Main() { Console.WriteLine("Hello World"); int counter=0; while(counter<5) { Console.WriteLine("Hello"); counter++; } } } using System; class HelloWorld { static void Main() { Console.WriteLine("Hello World"); int counter=0; for(;;) { Console.WriteLine("Hello"); counter++; if(counter==5) { break; } } } } int start = 80; int stop = 20; int increment = -10; while(start>=stop) { Console.WriteLine(start); start += increment; } } } int sum = 0; for(int counter=0; counter<5; counter++) { Console.WriteLine("Hello"); sum += counter; Console.WriteLine($"{sum}"); } Console.WriteLine($"After the loop {sum}");