import java.util.Scanner;
 
public class Main
{
  public static void main(String[] args)
  {
    Scanner k = new Scanner(System.in);
    String s = k.nextLine();
    if(s.equals("ABC"))
       System.out.println("ARC");
    else
       System.out.println("ABC");
  }
} import java.util.Scanner; Scanner java.util public class Main
{
  public static void main(String[] args)
  {
    Scanner k = new Scanner(System.in);
    String s = k.nextLine();
    if(s.equals("ABC"))
       System.out.println("ARC");
    else
       System.out.println("ABC");
  }
} Main public static void main(String[] args)
  {
    Scanner k = new Scanner(System.in);
    String s = k.nextLine();
    if(s.equals("ABC"))
       System.out.println("ARC");
    else
       System.out.println("ABC");
  } main {
    Scanner k = new Scanner(System.in);
    String s = k.nextLine();
    if(s.equals("ABC"))
       System.out.println("ARC");
    else
       System.out.println("ABC");
  } Scanner k = new Scanner(System.in); k new Scanner(System.in) String s = k.nextLine(); s k.nextLine() k.nextLine k if(s.equals("ABC"))
       System.out.println("ARC");
    else
       System.out.println("ABC"); s.equals("ABC") s.equals s "ABC" System.out.println("ARC") System.out.println System.out System System.out "ARC" System.out.println("ABC") System.out.println System.out System System.out "ABC" String[] args args public class Main
{
  public static void main(String[] args)
  {
    Scanner k = new Scanner(System.in);
    String s = k.nextLine();
    if(s.equals("ABC"))
       System.out.println("ARC");
    else
       System.out.println("ABC");
  }
} public class Main
{
  public static void main(String[] args)
  {
    Scanner k = new Scanner(System.in);
    String s = k.nextLine();
    if(s.equals("ABC"))
       System.out.println("ARC");
    else
       System.out.println("ABC");
  }
} Main
import java.util.Scanner;
 
public class Main
{
  public static void main(String[] args)
  {
    Scanner k = new Scanner(System.in);
    String s = k.nextLine();
    if(s.equals("ABC"))
       System.out.println("ARC");
    else
       System.out.println("ABC");
  }
}