import java.util.Collections;
import java.util.Scanner;
import java.util.stream.Collectors;

public class prog {
  public static void main(String[] args) {
    try (Scanner scanner = new Scanner(System.in)) {
      int N = scanner.nextInt();
      System.out.println(Collections.nCopies(N, "a").stream().collect(Collectors.joining()));
    }
  }
}