/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		 char upperCase, lowerCase;
        int i;
        upperCase = 'A';
        lowerCase = 'a';
 
        for (i = 1 ;i <= 26; i++) {
            System.out.println(upperCase + "\t" + lowerCase);
            upperCase++;
            lowerCase++;
        }
	}
}

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