/* 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
	{
		List<Character> sequence = new ArrayList<>();
		for (char c = 'A' ; c <= 'Z' ; c++) {
			sequence.add(c);
		}
		Collections.shuffle(sequence);
		for (Character c : sequence) {
			System.out.print(c);
		}
	}
}