using System;
public class Program
{
public static void Main()
char x;
int i=1;
Console.WriteLine("Enter letter");
x = char.Parse(Console.ReadLine());
if((int)x>=97&&(int)x<=122)
while(i<=5)
Console.Write((char)x);
i++;
}
else if((int)x>=65&&(int)x<=90)
while(i<=10)
if((int)x>=48&&(int)x<=57)
while(i<=15)
else
while(i<=20) {
i++; }