using System;
public class RepetitiveStructures
{
public static void Main()
{
int number, number2;
int i;
Console.Write("Enter first number: ");
number = Convert.ToInt32(Console.ReadLine());
Console.Write("Enter last number: ");
number2 = Convert.ToInt32(Console.ReadLine());
for (i = number; i <= number2; i++)
Console.Write("{0} ", i);
Console.WriteLine();
i = number;
while (i <= number2)
{
Console.Write("{0} ", i);
i++;
}
Console.WriteLine();
i = number;
do
{
Console.Write("{0} ", i);
i++;
}
while (i <= number2);
Console.WriteLine();
}
}