import java.util.*;

public class Main{
  
  public static void main(String[] args){
    
    Scanner sc = new Scanner(System.in);
    
    int t = sc.nextInt();
    
    StringBuilder sb0 = new StringBuilder();
    StringBuilder sb1 = new StringBuilder();
    StringBuilder sb2 = new StringBuilder();
    StringBuilder sb3 = new StringBuilder();
    
    sb0.append("AE");
    sb1.append("B");
    sb2.append("C");
    sb3.append("D");
    
    StringBuilder[] sb = {sb0,sb1,sb2,sb3};
    
    for(int i=0; i<t; i++){
      rot(sb,i);
    }
    
    for(int i=0; i<4; i++){
      System.out.println(sb[i].toString());
    }

  }
  
  public static void rot(StringBuilder[] sb, int i){
    sb[(i+1)%4].append(sb[i%4].substring(0,1));
    sb[i%4].delete(0,1);
  }

}